context
stringlengths
545
71.9k
questionsrc
stringlengths
16
10.2k
question
stringlengths
11
563
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
that 's because electrons travel in a line from water through psii and psi to nadph . ( photophosphorylation = light-driven synthesis of atp . ) in some cases , electrons break this pattern and instead loop back to the first part of the electron transport chain , repeatedly cycling through psi instead of ending up in n...
how many atp and nadph are formed from one light reaction ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
these molecules store energy for use in the next stage of photosynthesis : the calvin cycle . overview of the light-dependent reactions before we get into the details of the light-dependent reactions , let 's step back and get an overview of this remarkable energy-transforming process . the light-dependent reactions us...
is chemiosmosis only done in light dependent reactions or in light independent reactions too ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
the primary electron acceptor of psii is pheophytin , an organic molecule that resembles chlorophyll , while the primary electron acceptor of psi is a chlorophyll called $ \text a_0 $ $ ^ { 7,8 } $ . source of electrons . once an electron is lost , each photosystem is replenished by electrons from a different source .
since 2 electrons are split , all the 2 electrons are used in the psii or 1 electron ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
in plants , the light reactions take place in the thylakoid membranes of organelles called chloroplasts . photosystems , large complexes of proteins and pigments ( light-absorbing molecules ) that are optimized to harvest light , play a key role in the light reactions . there are two types of photosystems : photosystem...
where c6h12o6 formed in light reaction means co2 and h2o combine where ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
overview of the light-dependent reactions before we get into the details of the light-dependent reactions , let 's step back and get an overview of this remarkable energy-transforming process . the light-dependent reactions use light energy to make two molecules needed for the next stage of photosynthesis : the energy ...
why do plants go through cellular respiration when they could just use the atp and nadph produced by light-dependent reactions as sources of energy ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
the high-energy electron travels down an electron transport chain , losing energy as it goes . some of the released energy drives pumping of $ \text h^+ $ ions from the stroma into the thylakoid interior , building a gradient . ( $ \text h^+ $ ions from the splitting of water also add to the gradient . )
how does the stroma get h+ ions in the first place ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
the high-energy electron travels down an electron transport chain , losing energy as it goes . some of the released energy drives pumping of $ \text h^+ $ ions from the stroma into the thylakoid interior , building a gradient . ( $ \text h^+ $ ions from the splitting of water also add to the gradient . )
or is it that the stroma generally has h+ ions floating around ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
protons `` want '' to diffuse back down the gradient and into the stroma , and their only route of passage is through the enzyme atp synthase . atp synthase harnesses the flow of protons to make atp from adp and phosphate ( $ \text p_i $ ) . this process of making atp using energy stored in a chemical gradient is calle...
how many electrons , protons , and atp molecules are required for the li reaction ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
here are the basic steps : light absorption in psii . when light is absorbed by one of the many pigments in photosystem ii , energy is passed inward from pigment to pigment until it reaches the reaction center . there , energy is transferred to p680 , boosting an electron to a high energy level .
how many are provided by the ld reaction ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
photosystem ii when the p680 special pair of photosystem ii absorbs energy , it enters an excited ( high-energy ) state . excited p680 is a good electron donor and can transfer its excited electron to the primary electron acceptor , pheophytin . the electron will be passed on through the first leg of the photosynthetic...
are the electron carriers between photosystems actually electron carriers or a h carrier ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
overview of the light-dependent reactions before we get into the details of the light-dependent reactions , let 's step back and get an overview of this remarkable energy-transforming process . the light-dependent reactions use light energy to make two molecules needed for the next stage of photosynthesis : the energy ...
i just thought of this , would it be possible to genetically engineer a plant that can use light in the infared wavelengths ( heat ) for photosynthesis ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
in plants , the light reactions take place in the thylakoid membranes of organelles called chloroplasts . photosystems , large complexes of proteins and pigments ( light-absorbing molecules ) that are optimized to harvest light , play a key role in the light reactions . there are two types of photosystems : photosystem...
what are antenna molecules associated with light harvestingredients system ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
collectively , the pigment molecules collect energy and transfer it towards a central part of the photosystem called the reaction center . the reaction center of a photosystem contains a unique pair of chlorophyll a molecules , often called special pair ( actual scientific name—that 's how special it is ! ) . once ener...
so in a particular photo system is there only one unique pair of chlorophyll a ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
there are two types of photosystems : photosystem i ( psi ) and photosystem ii ( psii ) . both photosystems contain many pigments that help collect light energy , as well as a special pair of chlorophyll molecules found at the core ( reaction center ) of the photosystem . the special pair of photosystem i is called p70...
does the reaction centre only contain chlorophyll a ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
the light-dependent reactions use light energy to make two molecules needed for the next stage of photosynthesis : the energy storage molecule atp and the reduced electron carrier nadph . in plants , the light reactions take place in the thylakoid membranes of organelles called chloroplasts . photosystems , large compl...
how many ps1 and ps2 are there in chloroplast of plants ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
the primary electron acceptor of psii is pheophytin , an organic molecule that resembles chlorophyll , while the primary electron acceptor of psi is a chlorophyll called $ \text a_0 $ $ ^ { 7,8 } $ . source of electrons . once an electron is lost , each photosystem is replenished by electrons from a different source . ...
in photosystem 2 if electrons are coming from water molecule should it not be 2 electrons in ps 2 but only one electron is showed tranfering down transport chain ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
some of the released energy drives pumping of $ \text h^+ $ ions from the stroma into the thylakoid interior , building a gradient . ( $ \text h^+ $ ions from the splitting of water also add to the gradient . ) as $ \text h^+ $ ions flow down their gradient and into the stroma , they pass through atp synthase , driving...
since 2 hydrogen ions are produced ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ?
can we adopt some of your pictures ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
let ’ s trace the path of electrons in more detail , starting when they 're excited by light energy in psii . photosystem ii when the p680 special pair of photosystem ii absorbs energy , it enters an excited ( high-energy ) state . excited p680 is a good electron donor and can transfer its excited electron to the prima...
do the electrons lose energy during photosystem 1 ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
once an electron has gone down the first leg of the electron transport chain , it arrives at psi , where it joins the chlorophyll a special pair called p700 . because electrons have lost energy prior to their arrival at psi , they must be re-energized through absorption of another photon . excited p700 is a very good e...
i am quite confused , i know that there will be another photon of light coming in to p700 , but i am not quite sure how to describe what happens to the electrons ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
in this series of reactions , the electron is first passed to a protein called ferredoxin ( fd ) , then transferred to an enzyme called nadp $ ^+ $ reductase . nadp $ ^+ $ reductase transfers electrons to the electron carrier nadp $ ^+ $ to make nadph . nadph will travel to the calvin cycle , where its electrons are us...
i understand how the electrons got there but where did the hydrogens ions come from for that nadp+ ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
the reaction center of a photosystem contains a unique pair of chlorophyll a molecules , often called special pair ( actual scientific name—that 's how special it is ! ) . once energy reaches the special pair , it will no longer be passed on to other pigments through resonance energy transfer . instead , the special pa...
to be clear , in the resonance energy transfer pigments hand each other energy in the form of light ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
here are the basic steps : light absorption in psii . when light is absorbed by one of the many pigments in photosystem ii , energy is passed inward from pigment to pigment until it reaches the reaction center . there , energy is transferred to p680 , boosting an electron to a high energy level .
and how is it possible that one pigment absorbs a different wavelength than another pigment although they resonate ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disappear ( thanks to the first law of thermodynamics ) . as it turns out , some of the light energy absorbed by pigments in leaves is converted to a different form : chemical energy . light energy is converted to chemical e...
would n't it make more sense if they absorbed the exact amount of energy emitted by nearby pigments ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
let ’ s trace the path of electrons in more detail , starting when they 're excited by light energy in psii . photosystem ii when the p680 special pair of photosystem ii absorbs energy , it enters an excited ( high-energy ) state . excited p680 is a good electron donor and can transfer its excited electron to the prima...
are ps ii and p680 the same , or is p680 inside ps ii ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
instead , the special pair can actually lose an electron when excited , passing it to another molecule in the complex called the primary electron acceptor . with this transfer , the electron will begin its journey through an electron transport chain . photosystem i vs. photosystem ii there are two types of photosystems...
how long does it take the process through the electron transport chain ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
the high-energy electron is passed to an acceptor molecule and replaced with an electron from water . this splitting of water releases the $ \text o_2 $ we breathe . atp synthesis .
this splitting of water releases the o2 we breathe ... is this is oxidation , or dehydration reaction ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
the atp and nadph from the light-dependent reactions are used to make sugars in the next stage of photosynthesis , the calvin cycle . in another form of the light reactions , called cyclic photophosphorylation , electrons follow a different , circular path and only atp ( no nadph ) is produced . it 's important to real...
how many molecules of nadph and atp are produced in one turn of both cyclic and non cyclic phosphorylation ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
with this transfer , the electron will begin its journey through an electron transport chain . photosystem i vs. photosystem ii there are two types of photosystems in the light-dependent reactions , photosystem ii ( psii ) and photosystem i ( psi ) . psii comes first in the path of electron flow , but it is named as se...
a tricky question : how does photosystem ii get its name , given that it functions before photosystem i does ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
the primary electron acceptor of psii is pheophytin , an organic molecule that resembles chlorophyll , while the primary electron acceptor of psi is a chlorophyll called $ \text a_0 $ $ ^ { 7,8 } $ . source of electrons . once an electron is lost , each photosystem is replenished by electrons from a different source .
in photosystem i , is the source of electrons for cyclic photophosphorylations is water ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
the light-dependent reactions use light energy to make two molecules needed for the next stage of photosynthesis : the energy storage molecule atp and the reduced electron carrier nadph . in plants , the light reactions take place in the thylakoid membranes of organelles called chloroplasts . photosystems , large compl...
is there such thing as light-independent reactions ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
nadp $ ^+ $ reductase transfers electrons to the electron carrier nadp $ ^+ $ to make nadph . nadph will travel to the calvin cycle , where its electrons are used to build sugars from carbon dioxide . the other ingredient needed by the calvin cycle is atp , and this too is provided by the light reactions .
why should light reaction occur before carbon fixation ( calvin cycle ) ?
introduction plants and other photosynthetic organisms are experts at collecting solar energy , thanks to the light-absorbing pigment molecules in their leaves . but what happens to the light energy that is absorbed ? we don ’ t see plant leaves glowing like light bulbs , but we also know that energy ca n't just disapp...
the psii special pair absorbs best at 680 nm , while the psi special absorbs best at 700 nm . because of this , the special pairs are called p680 and p700 , respectively . primary acceptor .
the article states that both p680 and p700 are the strongest know reducing agents which one ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
intestinal cells have to be replaced as they wear out ; yeast cells need to reproduce to keep their population growing ; and a tadpole must make new cells as it grows bigger and more complex . what is mitosis ? mitosis is a type of cell division in which one cell ( the mother ) divides to produce two new cells ( the da...
so is mitosis the same as asexual reproduction ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
it may start in either anaphase or telophase , depending on the cell , and finishes shortly after telophase . in animal cells , cytokinesis is contractile , pinching the cell in two like a coin purse with a drawstring . the “ drawstring ” is a band of filaments made of a protein called actin , and the pinch crease is k...
do animal cells have only one centrosome ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
intestinal cells have to be replaced as they wear out ; yeast cells need to reproduce to keep their population growing ; and a tadpole must make new cells as it grows bigger and more complex . what is mitosis ? mitosis is a type of cell division in which one cell ( the mother ) divides to produce two new cells ( the da...
in plant cells the `` celll wall '' separates the cell into two daughters at the end of mitosis right ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
in mitosis , motor proteins carry chromosomes or other microtubules as they walk . in telophase , the cell is nearly done dividing , and it starts to re-establish its normal structures as cytokinesis ( division of the cell contents ) takes place . the mitotic spindle is broken down into its building blocks .
why does nucleolus disappear during cell division and then reappear again ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
in early prophase , the cell starts to break down some structures and build others up , setting the stage for division of the chromosomes . the chromosomes start to condense ( making them easier to pull apart later on ) . the mitotic spindle begins to form .
how are the compacted chromosomes easier to pull apart than unraveled chromosomes ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
microtubules not attached to chromosomes elongate and push apart , separating the poles and making the cell longer . all of these processes are driven by motor proteins , molecular machines that can “ walk ” along microtubule tracks and carry a cargo . in mitosis , motor proteins carry chromosomes or other microtubules...
are motor proteins found in all living creatures ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
in mitosis , motor proteins carry chromosomes or other microtubules as they walk . in telophase , the cell is nearly done dividing , and it starts to re-establish its normal structures as cytokinesis ( division of the cell contents ) takes place . the mitotic spindle is broken down into its building blocks .
what happens to the cell organelles during cell division ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
why do these very different organisms and tissues all need mitosis ? intestinal cells have to be replaced as they wear out ; yeast cells need to reproduce to keep their population growing ; and a tadpole must make new cells as it grows bigger and more complex . what is mitosis ?
can this also happen in new brain cells to replace cells that died due to lack of oxygen as in stroke ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
intestinal cells have to be replaced as they wear out ; yeast cells need to reproduce to keep their population growing ; and a tadpole must make new cells as it grows bigger and more complex . what is mitosis ? mitosis is a type of cell division in which one cell ( the mother ) divides to produce two new cells ( the da...
how does the cell `` know `` to carry out mitosis ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
nuclear membranes and nucleoli reappear . the chromosomes begin to decondense and return to their “ stringy ” form . cytokinesis , the division of the cytoplasm to form two new cells , overlaps with the final stages of mitosis .
how many chromosomes does the parent cell have to begin with ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
in mitosis , motor proteins carry chromosomes or other microtubules as they walk . in telophase , the cell is nearly done dividing , and it starts to re-establish its normal structures as cytokinesis ( division of the cell contents ) takes place . the mitotic spindle is broken down into its building blocks .
and how many chromosomes does each daugher cell have after cell division is complete ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
intestinal cells have to be replaced as they wear out ; yeast cells need to reproduce to keep their population growing ; and a tadpole must make new cells as it grows bigger and more complex . what is mitosis ? mitosis is a type of cell division in which one cell ( the mother ) divides to produce two new cells ( the da...
what is the difference between meiosis and mitosis ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
intestinal cells have to be replaced as they wear out ; yeast cells need to reproduce to keep their population growing ; and a tadpole must make new cells as it grows bigger and more complex . what is mitosis ? mitosis is a type of cell division in which one cell ( the mother ) divides to produce two new cells ( the da...
which cell is not in a phase of mitosis ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
the “ drawstring ” is a band of filaments made of a protein called actin , and the pinch crease is known as the cleavage furrow . plant cells can ’ t be divided like this because they have a cell wall and are too stiff . instead , a structure called the cell plate forms down the middle of the cell , splitting it into t...
considering they do n't have a centrosome where do the spindle fibers come from , in the plant cell ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
intestinal cells have to be replaced as they wear out ; yeast cells need to reproduce to keep their population growing ; and a tadpole must make new cells as it grows bigger and more complex . what is mitosis ? mitosis is a type of cell division in which one cell ( the mother ) divides to produce two new cells ( the da...
are there other ways for a cell to reproduce other than mitosis and meiosis ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
why do these very different organisms and tissues all need mitosis ? intestinal cells have to be replaced as they wear out ; yeast cells need to reproduce to keep their population growing ; and a tadpole must make new cells as it grows bigger and more complex . what is mitosis ?
in all human cells are there 46 chromosomes ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
for single-celled eukaryotes like yeast , mitotic divisions are actually a form of reproduction , adding new individuals to the population . in all of these cases , the “ goal ” of mitosis is to make sure that each daughter cell gets a perfect , full set of chromosomes . cells with too few or too many chromosomes usual...
how many chromosomes does each daughter cell have after mitosis ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
( centromeres are the regions of dna where the sister chromatids are most tightly connected . ) microtubules that bind a chromosome are called kinetochore microtubules . microtubules that don ’ t bind to kinetochores can grab on to microtubules from the opposite pole , stabilizing the spindle .
are `` spindle fibres '' `` microtubules '' and `` kinetochore microtubules '' the same thing ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
each is now its own chromosome . the chromosomes of each pair are pulled towards opposite ends of the cell . microtubules not attached to chromosomes elongate and push apart , separating the poles and making the cell longer . all of these processes are driven by motor proteins , molecular machines that can “ walk ” alo...
does each cell have 46 chromosomes ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
in mitosis , motor proteins carry chromosomes or other microtubules as they walk . in telophase , the cell is nearly done dividing , and it starts to re-establish its normal structures as cytokinesis ( division of the cell contents ) takes place . the mitotic spindle is broken down into its building blocks .
what exactly do the kinetochores and centromeres do in the cell ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
intestinal cells have to be replaced as they wear out ; yeast cells need to reproduce to keep their population growing ; and a tadpole must make new cells as it grows bigger and more complex . what is mitosis ? mitosis is a type of cell division in which one cell ( the mother ) divides to produce two new cells ( the da...
when do centrioles duplicate in mitosis and meiosis ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
cells with too few or too many chromosomes usually don ’ t function well : they may not survive , or they may even cause cancer . so , when cells undergo mitosis , they don ’ t just divide their dna at random and toss it into piles for the two daughter cells . instead , they split up their duplicated chromosomes in a c...
if you cut yourself , does the cells instantly go to mitosis and skips some of the interphase or does something else happen ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
in animal cells , cytokinesis is contractile , pinching the cell in two like a coin purse with a drawstring . the “ drawstring ” is a band of filaments made of a protein called actin , and the pinch crease is known as the cleavage furrow . plant cells can ’ t be divided like this because they have a cell wall and are t...
what is `` cleavage furrow '' ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
( centromeres are the regions of dna where the sister chromatids are most tightly connected . ) microtubules that bind a chromosome are called kinetochore microtubules . microtubules that don ’ t bind to kinetochores can grab on to microtubules from the opposite pole , stabilizing the spindle .
is n't the microtubules also called spindle fibers ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
intestinal cells have to be replaced as they wear out ; yeast cells need to reproduce to keep their population growing ; and a tadpole must make new cells as it grows bigger and more complex . what is mitosis ? mitosis is a type of cell division in which one cell ( the mother ) divides to produce two new cells ( the da...
if a mutation would occur during mitosis would it effect both sisters or only one ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
the “ drawstring ” is a band of filaments made of a protein called actin , and the pinch crease is known as the cleavage furrow . plant cells can ’ t be divided like this because they have a cell wall and are too stiff . instead , a structure called the cell plate forms down the middle of the cell , splitting it into t...
what is the difference between the genetic material in a parent cell vs in a daughter cell ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
intestinal cells have to be replaced as they wear out ; yeast cells need to reproduce to keep their population growing ; and a tadpole must make new cells as it grows bigger and more complex . what is mitosis ? mitosis is a type of cell division in which one cell ( the mother ) divides to produce two new cells ( the da...
is it posible a problem could go unnoticed during mitosis , and result in having uneven chromosome distribution ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ? intestinal cells have to be replaced as they wear out ; yeast cells need to reproduce to keep their populat...
but then how do organisms die if one can simply heal via mitosis ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
in mitosis , motor proteins carry chromosomes or other microtubules as they walk . in telophase , the cell is nearly done dividing , and it starts to re-establish its normal structures as cytokinesis ( division of the cell contents ) takes place . the mitotic spindle is broken down into its building blocks .
is there something that regulated the number of times a cell can divide ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
this is a sign that the nucleus is getting ready to break down . in late prophase ( sometimes also called prometaphase ) , the mitotic spindle begins to capture and organize the chromosomes . the chromosomes finish condensing , so they are very compact .
does formation of spindle fibres happen in prophase or metaphase ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
intestinal cells have to be replaced as they wear out ; yeast cells need to reproduce to keep their population growing ; and a tadpole must make new cells as it grows bigger and more complex . what is mitosis ? mitosis is a type of cell division in which one cell ( the mother ) divides to produce two new cells ( the da...
are there any other types of cell dividing other than mitosis ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
the “ drawstring ” is a band of filaments made of a protein called actin , and the pinch crease is known as the cleavage furrow . plant cells can ’ t be divided like this because they have a cell wall and are too stiff . instead , a structure called the cell plate forms down the middle of the cell , splitting it into t...
can identical twins , being divided from a cell in the very beginning and therefore having the same dna , ever be slightly different , like have a different birthmark or something from the other twin , or must they be exactly alike ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
intestinal cells have to be replaced as they wear out ; yeast cells need to reproduce to keep their population growing ; and a tadpole must make new cells as it grows bigger and more complex . what is mitosis ? mitosis is a type of cell division in which one cell ( the mother ) divides to produce two new cells ( the da...
why does n't order of homologous chromosomes matter during mitosis but it does for meiosis ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
( plant cells generally don ’ t have centrosomes with centrioles , but have a different type of microtubule organizing center that plays a similar role . ) in early prophase , the cell starts to break down some structures and build others up , setting the stage for division of the chromosomes . the chromosomes start to...
why do chromosomes condense during prophase ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
this animal cell has also made a copy of its centrosome , an organelle that will play a key role in orchestrating mitosis , so there are two centrosomes . ( plant cells generally don ’ t have centrosomes with centrioles , but have a different type of microtubule organizing center that plays a similar role . ) in early ...
are centrosomes the same as centrioles ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
plant cells can ’ t be divided like this because they have a cell wall and are too stiff . instead , a structure called the cell plate forms down the middle of the cell , splitting it into two daughter cells separated by a new wall . when cytokinesis finishes , we end up with two new cells , each with a complete set of...
how does the cell plate actually form ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves .
what do g1 , s and g2 stand for ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
the “ drawstring ” is a band of filaments made of a protein called actin , and the pinch crease is known as the cleavage furrow . plant cells can ’ t be divided like this because they have a cell wall and are too stiff . instead , a structure called the cell plate forms down the middle of the cell , splitting it into t...
how does a plant cell reproduce ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
the mitotic spindle is broken down into its building blocks . two new nuclei form , one for each set of chromosomes . nuclear membranes and nucleoli reappear .
what is a set of chromosomes ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
the mitotic spindle is broken down into its building blocks . two new nuclei form , one for each set of chromosomes . nuclear membranes and nucleoli reappear .
in telophase it says nuclei form around each set of chromosomes- so is a set a chromatid ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
why do these very different organisms and tissues all need mitosis ? intestinal cells have to be replaced as they wear out ; yeast cells need to reproduce to keep their population growing ; and a tadpole must make new cells as it grows bigger and more complex . what is mitosis ?
are all new cells undifferentiated ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
the chromosomes finish condensing , so they are very compact . the nuclear envelope breaks down , releasing the chromosomes . the mitotic spindle grows more , and some of the microtubules start to “ capture ” chromosomes .
is there a difference between nuclear envelope and nuclear membrane ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
microtubules can bind to chromosomes at the kinetochore , a patch of protein found on the centromere of each sister chromatid . ( centromeres are the regions of dna where the sister chromatids are most tightly connected . ) microtubules that bind a chromosome are called kinetochore microtubules .
can you make dna artificially ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
in mitosis , motor proteins carry chromosomes or other microtubules as they walk . in telophase , the cell is nearly done dividing , and it starts to re-establish its normal structures as cytokinesis ( division of the cell contents ) takes place . the mitotic spindle is broken down into its building blocks .
can cell growth and division be turned on and off ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
intestinal cells have to be replaced as they wear out ; yeast cells need to reproduce to keep their population growing ; and a tadpole must make new cells as it grows bigger and more complex . what is mitosis ? mitosis is a type of cell division in which one cell ( the mother ) divides to produce two new cells ( the da...
in which stage of mitosis is the chromatin found in the nucleus ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
intestinal cells have to be replaced as they wear out ; yeast cells need to reproduce to keep their population growing ; and a tadpole must make new cells as it grows bigger and more complex . what is mitosis ? mitosis is a type of cell division in which one cell ( the mother ) divides to produce two new cells ( the da...
what cell is not a phase in mitosis ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
instead , they split up their duplicated chromosomes in a carefully organized series of steps . phases of mitosis mitosis consists of four basic phases : prophase , metaphase , anaphase , and telophase . some textbooks list five , breaking prophase into an early phase ( called prophase ) and a late phase ( called prome...
why are there so many phases of mitosis ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
in late prophase ( sometimes also called prometaphase ) , the mitotic spindle begins to capture and organize the chromosomes . the chromosomes finish condensing , so they are very compact . the nuclear envelope breaks down , releasing the chromosomes . the mitotic spindle grows more , and some of the microtubules start...
in anaphase when the kinetochores breaks down so every sister chromatit is now individual chromosomes , does the kinetochore can be said to break down in 2 equal parts for each of the final individual chromosomes ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
instead , they split up their duplicated chromosomes in a carefully organized series of steps . phases of mitosis mitosis consists of four basic phases : prophase , metaphase , anaphase , and telophase . some textbooks list five , breaking prophase into an early phase ( called prophase ) and a late phase ( called prome...
sir i have a question that mitosis is a quick process and it done very quickly so why we divide them in these phases ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
what is mitosis ? mitosis is a type of cell division in which one cell ( the mother ) divides to produce two new cells ( the daughters ) that are genetically identical to itself . in the context of the cell cycle , mitosis is the part of the division process in which the dna of the cell 's nucleus is split into two equ...
are golgi and er also replicated in anticipation of the `` arrival '' of two daughter cells and the `` loss '' of the mother cell ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
intestinal cells have to be replaced as they wear out ; yeast cells need to reproduce to keep their population growing ; and a tadpole must make new cells as it grows bigger and more complex . what is mitosis ? mitosis is a type of cell division in which one cell ( the mother ) divides to produce two new cells ( the da...
so does that mean that mitosis has 8 stages starting from late g2 to early g1 ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ? intestinal cells have to be replaced as they wear out ; yeast cells need to reproduce to keep their populat...
how are the different processes of mitosis and cytokinesis directed .are they pre- programmed in the dna ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
cytokinesis , the division of the cytoplasm to form two new cells , overlaps with the final stages of mitosis . it may start in either anaphase or telophase , depending on the cell , and finishes shortly after telophase . in animal cells , cytokinesis is contractile , pinching the cell in two like a coin purse with a d...
how the nucleolus reappear during telophase ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
in the context of the cell cycle , mitosis is the part of the division process in which the dna of the cell 's nucleus is split into two equal sets of chromosomes . the great majority of the cell divisions that happen in your body involve mitosis . during development and growth , mitosis populates an organism ’ s body ...
what stage in `` in between '' cell divisions ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
intestinal cells have to be replaced as they wear out ; yeast cells need to reproduce to keep their population growing ; and a tadpole must make new cells as it grows bigger and more complex . what is mitosis ? mitosis is a type of cell division in which one cell ( the mother ) divides to produce two new cells ( the da...
what are important structures involved in mitosis that are difficult or impossible to see ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
what is mitosis ? mitosis is a type of cell division in which one cell ( the mother ) divides to produce two new cells ( the daughters ) that are genetically identical to itself . in the context of the cell cycle , mitosis is the part of the division process in which the dna of the cell 's nucleus is split into two equ...
when the cell splits is there now two cells or three ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
what is mitosis ? mitosis is a type of cell division in which one cell ( the mother ) divides to produce two new cells ( the daughters ) that are genetically identical to itself . in the context of the cell cycle , mitosis is the part of the division process in which the dna of the cell 's nucleus is split into two equ...
is the mother cell now one of the two daughter cells ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
the mitotic spindle is broken down into its building blocks . two new nuclei form , one for each set of chromosomes . nuclear membranes and nucleoli reappear .
i have a question , prior to mitosis ( in g2 of interphase ) the chromosomes are replicated and exist as two bodies that are attached at a site known as the nucleosome ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
it may start in either anaphase or telophase , depending on the cell , and finishes shortly after telophase . in animal cells , cytokinesis is contractile , pinching the cell in two like a coin purse with a drawstring . the “ drawstring ” is a band of filaments made of a protein called actin , and the pinch crease is k...
what are the differences of cytokinesis in an animal and a plant cell ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
the “ drawstring ” is a band of filaments made of a protein called actin , and the pinch crease is known as the cleavage furrow . plant cells can ’ t be divided like this because they have a cell wall and are too stiff . instead , a structure called the cell plate forms down the middle of the cell , splitting it into t...
instead , a structure called the cell plate forms down the middle of the cell , splitting it into two daughter cells separated by a new wall '' does this mean that by successive divisions in plant cells , the size and volume of plant cell goes on decreasing ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
the spindle grows between the centrosomes as they move apart . the nucleolus ( or nucleoli , plural ) , a part of the nucleus where ribosomes are made , disappears . this is a sign that the nucleus is getting ready to break down . in late prophase ( sometimes also called prometaphase ) , the mitotic spindle begins to c...
so what happens to the nucleus ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
the chromosomes start to condense ( making them easier to pull apart later on ) . the mitotic spindle begins to form . the spindle is a structure made of microtubules , strong fibers that are part of the cell ’ s “ skeleton. ” its job is to organize the chromosomes and move them around during mitosis .
is it possible that the nucleus could turn into the mitotic spindle ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
each is now its own chromosome . the chromosomes of each pair are pulled towards opposite ends of the cell . microtubules not attached to chromosomes elongate and push apart , separating the poles and making the cell longer .
i am a bit confused with the interphase ; does the cell replicate each of its homologous pair , meaning that it would have two pairs for one original homologous pair , and therefore 92 chromosomes ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
intestinal cells have to be replaced as they wear out ; yeast cells need to reproduce to keep their population growing ; and a tadpole must make new cells as it grows bigger and more complex . what is mitosis ? mitosis is a type of cell division in which one cell ( the mother ) divides to produce two new cells ( the da...
what are the 4 main reasons why a cell would divide using mitosis ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
phases of mitosis mitosis consists of four basic phases : prophase , metaphase , anaphase , and telophase . some textbooks list five , breaking prophase into an early phase ( called prophase ) and a late phase ( called prometaphase ) . these phases occur in strict sequential order , and cytokinesis - the process of div...
what is the longest phase of the entire cell cycle ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
intestinal cells have to be replaced as they wear out ; yeast cells need to reproduce to keep their population growing ; and a tadpole must make new cells as it grows bigger and more complex . what is mitosis ? mitosis is a type of cell division in which one cell ( the mother ) divides to produce two new cells ( the da...
how does a cell know when to perform mitosis ?
introduction what do your intestines , the yeast in bread dough , and a developing frog all have in common ? among other things , they all have cells that carry out mitosis , dividing to produce more cells that are genetically identical to themselves . why do these very different organisms and tissues all need mitosis ...
what is mitosis ? mitosis is a type of cell division in which one cell ( the mother ) divides to produce two new cells ( the daughters ) that are genetically identical to itself . in the context of the cell cycle , mitosis is the part of the division process in which the dna of the cell 's nucleus is split into two equ...
what would happen if there is a shortage of chromosome in the new divided cell ?