id stringlengths 1 36 | source_dataset stringclasses 10 values | question stringlengths 1 1.4k | options sequencelengths 4 4 | answer stringclasses 4 values | subject_name stringclasses 6 values | explanation stringlengths 0 22.5k ⌀ |
|---|---|---|---|---|---|---|
acquarat_73998 | acquarat | Kim has 4 pairs of shoes; each pair is a different color. If Kim randomly selects 2 shoes without replacement from the 8 shoes, what is the probability that she will select 2 shoes of the same color? | [
"1/7",
"1/8",
"1/9",
"1/10"
] | A | Total pairs = 8C2 = 28; Same Color Pairs= 4C1*1C1=4; Prob = 1/7
Ans A | |
46d863fe-143b-4334-a65c-574c9c9d118d | medmcqa | The major constituents in agar are | [
"Fats",
"Aminoacids",
"Polysaccharides",
"Polypeptides"
] | C | Microbiology | Agar, a polysaccharide extract of a marine alga, is uniquely suitable for microbial cultivation because it is resistant to microbial action and becauseit dissolves at 100degC but does not gel until cooled below 45degC; cells can be suspended in the medium at 45degC and the medium quickly cooled to a gel without harming them.Ref: Jawetz, Melnick, & Adelberg's Medical Microbiology; Twenty-Seventh Edition; Chapter 5; Cultivation of Microorganisms |
acquarat_42429 | acquarat | 14, 35, 56, 91, 126
In the sequence above, each term is related with the others. Which of the following could not be a term in the sequence? | [
"407",
"259",
"322",
"686"
] | A | Simplifying the question into easier words we just need to find which of the numbers is not divisible by 7
clearly the answer is 407 because if we divide 407 by 4 we get a remainder of 1
Correct answer - A | |
acquarat_88183 | acquarat | 60% of a number is added to 120, the result is the same number. Find the number? | [
"300",
"288",
"270",
"129"
] | A | ||
9ad7811f-ad8c-48ea-b673-fbeff3fee53a | medmcqa | Best predictor for coronary aery disease - | [
"HDL",
"LDL",
"VLDL",
"Chylomicron"
] | B | Medicine | LDL is the best indicater of the risk for CAD.high level of LDL is the indicater |
90890b4a-8af5-4adb-b51b-b9d15922bf8e | medmcqa | Which group of streptococcus grow at > 60degC | [
"A",
"B",
"C",
"D"
] | D | Microbiology | |
3923b210-4b02-44cc-9af9-cc3c1fe952c8 | medmcqa | A histological section of the left ventricle of a deceased 28-year-old male shows classic contraction band necrosis of the myocardium. Biological specimens confirm the presence of cocaine and metabolites. Activity of which of the following enzymes was most likely increased in the patient's myocardial cells sholy prior to his death? | [
"Phosphoenolpyruvate carboxykinase",
"Phosphofructokinase-1",
"Pyruvate dehydrogenase",
"Succinate dehydrogenase"
] | B | Biochemistry | Cocaine causes contraction band necrosis by blocking the reuptake of norepinephrine, resulting in excessive vasoconstriction of coronary vessels, leading to ischemia and infarction of hea tissue. Under these pathological conditions, myocardial cells switch to anaerobic metabolism and therefore glycolysis becomes the sole source of ATP substrate-level phosphorylations by phosphoglycerate kinase and pyruvate kinase. Phosphofructokinase-1 (PFK-1) is the rate-limiting enzyme of glycolysis, and its activity would therefore be increased. Phosphoenolpyruvate carboxykinase is a regulatory enzyme in gluconeogenesis, which is induced by coisol, epinephrine, and glucagon. It functions in the hepatic synthesis of glucose when energy levels from beta-oxidation of fatty acids are adequate. Pyruvate dehydrogenase produces acetyl-CoA from pyruvate and coenzyme A, bridging glycolysis and the Krebs cycle. It requires 5 cofactors, including NAD and FAD, which would no longer be produced by the electron transpo under hypoxic conditions, decreasing its activity. Succinate dehydrogenase is a key enzyme of the Krebs cycle, producing a reduced equivalent of FAD to feed into the electron transpo chain. It is also known as Complex II. The Krebs cycle only functions if oxygen is in appropriate concentrations since it is regulated by the levels of NADH, which is only consumed by the electron transpo chain if there is enough oxygen. The absence of oxygen leads to an accumulation of NADH and a subsequent decrease in the enzyme activities of the Krebs cycle. Ref: Bender D.A., Mayes P.A. (2011). Chapter 20. Gluconeogenesis & the Control of Blood Glucose. In D.A. Bender, K.M. Botham, P.A. Weil, P.J. Kennelly, R.K. Murray, V.W. Rodwell (Eds), Harper's Illustrated Biochemistry, 29e. |
acquarat_28088 | acquarat | If 4 (A's capital) = 6 (B's capital) = 10 (C's capital), then out of a profit of Rs. 682, C will receive | [
"233",
"381",
"132",
"287"
] | C | Explanation:
Let 4A = 6B = 1OC = k. Then, A = k/4, B = k/6, and C =k/10 .
A : B :C = k/4 : k/6 : k/10 = 15 : 10 : 6.
Hence, C's share (682* 6/31) = Rs, 132.
Answer: C) Rs.132 | |
acquarat_2117 | acquarat | If PENCIL is coded as 45 and TRASH is coded as 36, then MEMORY is coded as | [
"33",
"59",
"60",
"72"
] | D | PENCIL= 16+5+14+3+9+12=59 i.e 5*9=45
TRASH= 20+18+1+19+8=66 i.e 6*6=36
MEMORY 13+5+13+15+18+25=89 8*9=72
ANSWER:D | |
acquarat_5676 | acquarat | A father said to his son, "I was as old as you are at the present at the time of your birth". If the father's age is 48 years now, the son's age five years back was: | [
"14",
"17",
"19",
"22"
] | C | Let the son's present age be x years. Then, (48 - x) = x
2x = 48.
x = 24.
Son's age 5 years back (24 - 5) = 19 years.
answer :C | |
acquarat_82695 | acquarat | Before being simplified, the instructions for computing income tax in Country R were to add 2 percent of one's annual income to the average (arithmetic mean) of 100 units of Country R's currency and 1 percent of one's annual income. Which of the following represents the simplified formula for computing the income tax, in Country R's currency, for a person in that country whose annual income is Q? | [
"50+Q/200",
"50+3Q/100",
"50+Q/40",
"100+Q/50"
] | C | 50+Q/40=C | |
acquarat_97155 | acquarat | One side of the bottom layer of a triangular pyramid has 12 balls. How many are there in the whole pyramid?Note that the pyramid is equilateral and solid. | [
"286",
"364",
"504",
"164"
] | B | As there are 12 balls along one side, it means that there are 12 layers of balls. The top most layer has 1 ball. The second layer has 3 (1+2) balls. The third layer has 6 (1+2+3) balls. The fourth layer has 10 (1+2+3+4) balls. The fifth layer has 15 (1+2+3+4+5) balls. Similarly, there are 21, 28, 36, 45, 55, 66 and 78 balls in the remaining layers.
Hence, the total number of balls are
= 1 + 3 + 6 + 10 + 15 + 21 +28 + 36 + 45 + 55 + 66 + 78
= 364 balls
ANSWER:B | |
acquarat_91838 | acquarat | A Train requires 10 seconds to pass a pole while it requires 40 seconds to cross a stationary train which is 300 mtrs long. Find the speed of the train. | [
"36kmph",
"42kmph",
"48kmph",
"52kmph"
] | A | In 10s the train crosses the pole and in 40 sec the train crosses one more stationary train
In 30 sec the train travels a distance of 300 mtrs
Speed = 300/30 = 10 m/s = 10 * 18/5 = 36 kmph
Answer: A | |
acquarat_78382 | acquarat | A can do a piece of work in 20 days. B in 15 days A and C in 12 days. In how many days can A finish the work if he is assisted by B on one day and C on the next, alternately? | [
"7 days",
"8 days",
"5 days",
"4 days"
] | B | A + B = 1/20 + 1/15 = 7/60
A + C = 1/20 + 1/12 = 8/60
7/60 + 8/60 = 15/60 = 1/4
4 days * 2 = 8 days
Answer: B | |
MSA_2012_5_15 | arc_challenge | Students made lemonade using the following recipe: 100 grams of lemon juice 100 grams of sugar 1,000 grams of water The students combined the lemon juice, sugar, and water in a container. They stirred the lemonade until all the sugar dissolved. They poured the lemonade into a plastic tray and put the tray in a freezer. The next day, the students removed the tray from the freezer and observed that the lemonade was a solid. Which statement best explains why the lemonade became a solid? | [
"The lemonade was cooled to 100°C.",
"The lemonade was heated to 100°C.",
"The lemonade was cooled below 0°C.",
"The lemonade was heated above 0°C."
] | C | ||
acquarat_93897 | acquarat | Mane and Thomas are among the 8 people from which a committee of 4 people is to be selected. How many different possible committees of 4 people can be selected from these 8 people if at least one of either Mane or Thomas is to be selected? | [
"28",
"46",
"55",
"63"
] | C | Ans:C
Solution:
M+T+6 = total 8 ,
we need to select at least one of the M and T or both= total 4 out of 8 - 4 out of 6
8C4 - 6C4
=55 | |
Mercury_SC_408323 | arc_easy | Jonathan places a pot of water on a stove. As the water boils, how does the state of the water change? | [
"from gas to liquid",
"from liquid to gas",
"from liquid to solid",
"from solid to liquid"
] | B | ||
2a33fdc9-df8d-48ac-97c7-9e73d7d1e398 | medmcqa | Derivatives of midgut ? | [
"Rectum",
"Appendix",
"Liver",
"Stomach"
] | B | Anatomy | Ans. is 'b' i.e., Appendix The gut is endodermal in origin and is derived from yolk sac. Developing gut is divided into :?Foregut :- Aery of foregut is coeliac trunk. Foregut derivatives of GIT are esophagus, stomach, duodenum (upto opening of main pancreatic duct), liver and pancreas.Midgut :- Aery of midgut is superior mesenteric aery. GIT derivatives of midgut are duodenum (distal to opening of main pancreatic duct), small intestine (jejunum, ileum), appendix, cecum, ascending colon and proximal (right) 2/3 of transverse colon.Hindgut :- Aery of hindgut is inferior mesenteric aery. Hindgut derivatives are distal (left) 1/3 of transverse colon, descending colon, proximal pa of rectum. Caudal pa of hind gut is called cloaca. Distal pa of rectum and upper pa of canal are developed from endodermal cloaca. |
acquarat_48424 | acquarat | A man can row his boat with the stream at 16 km/h and against the stream in 6 km/h. The man's rate is? | [
"5 kmph",
"6 kmph",
"7 kmph",
"4 kmph"
] | A | Explanation:
DS = 16
US = 6
S = ?
S = (16 - 6)/2 =5 kmph
Answer: A | |
acquarat_32511 | acquarat | If x and y are integers and 4^(x-4) = 4^(y+4), what is y in terms of x? | [
"x - 8",
"x - 5",
"x - 2",
"x + 2"
] | A | ||
MDSA_2009_8_12 | arc_easy | Nitrogen, a nutrient found in fertilizer, helps plants increase in size. Rainwater runoff often carries fertilizer into ponds and lakes. What effect does excess nitrogen have on organisms in a pond or lake ecosystem? | [
"Algae grows rapidly.",
"Mutations occur gradually in fish.",
"Clam shells are slowly weakened.",
"Frogs adapt quickly to new food sources."
] | A | ||
6dde832a-651e-46d7-9c4b-4ebc4aa38c91 | medmcqa | Which of the following is used for antibiotic sensitivity testing | [
"Thayer main medium",
"Mueller hinton agar",
"Chocolate agar",
"None of the above"
] | B | Microbiology | Muller-Hinton agar is a microbiological growth medium that is commonly used for antibiotic susceptibility testing. It is also used to isolate and maintain Neisseria and Moraxella species Ref ananthnarayana and panikers microbiology textbook 8/e |
fb448189-1e27-47f0-9ac3-d0b6d4aae113 | medmcqa | The roof of the olfactory region is formed by? | [
"Nasal hone",
"Cribriform plate of ethmoid",
"Sphenoid",
"Temporal bone"
] | B | Anatomy | |
b6fc05b5-5c1a-46ec-a6b9-20bf6715ba67 | medmcqa | Intramuscular injections are given in --------- quadrant of gluteus | [
"Inferomedial",
"Superomedial",
"Superolateral",
"Inferolateral"
] | C | Pharmacology | To avoid injury to major aeries and nerves, injections are given usually in the upper or supero lateral pa of gluteus Ref: KD Tripathi 8th ed |
44837d5b-2176-43ee-80a3-cff835a0d519 | medmcqa | All are true regarding Hyper IgE syndrome except- | [
"Inheritance is as a single locus Autosomal dominant trait with variable expression",
"Coarse facial features",
"Recurrent staphylococcal abscesses involving skin, lungs",
"High serum IgE with low IgG, IgA and IgM"
] | D | Medicine | null |
acquarat_55501 | acquarat | A single letter is selected at random from the word 'SIM'. The probability that it is a vowel is..?? | [
"2/11",
"3/11",
"4/11",
"1/3"
] | D | total vowels = 1, total number of letters = 3
so probability = 1/3
ANSWER:D | |
acquarat_25037 | acquarat | Uncle Bruce is baking chocolate chip cookies. He has 50 ounces of dough (with no chocolate) and 40 ounces of chocolate. How much chocolate is left over if he uses all the dough but only wants the cookies to consist of 30% chocolate? | [
"22.86",
"23.86",
"25",
"26"
] | A | First, you must find the total weight of the mixture given that 80% of it will be dough.
70%*Total = 40 => (7/10)Total=40 => Total=400/7 => Total=57.14 oz,
From there, you must find 30% of the total 57.14 oz of the mixture.
30%*Total => (3/10)(57.14)= 17.14 oz choclate used,
Not forgetting that the question asks how much chocolate is left over we must subtract the chocolate used from the initial chocolate. 40-17.14 = 22.86 oz chocolate left over.
Answer : A | |
3VJ40NV2QIM0B0V4KTTG4H0KUD4OTA | qasc | What causes the penis to develop? | [
"Energy",
"Creatine",
"Testosterone",
"Estrogen"
] | C | ||
c084b798-6ed3-4bdf-b1d2-84aba1385837 | medmcqa | All of the following statements about hyponatremia are true, except: | [
"Pseudohyponatremia is associated with low plasma osmolality",
"Hyponatremia associated with hyperglycemia has high plasma osmolality",
"Hyponatremia associated with SIADH is normovolemic",
"NSAIDs increase the potency of vasopressin"
] | A | Medicine | Pseudohyponatremia is associated with normal serum osmolarity. In this condition the aqueous fraction of plasma is decreased and the paiculate fraction is increased. This can result from hyperlipidemia (TG>1500mg/dl), hypercholesterolemia or hyperprotenemia (as in multiple myeloma, waldenstroms macroglobulinemia, administration of intravenous immunoglobulin) Ref: Nephrology in 30 Days By Robe F. Reilly, Mark A. Perazella, page 38; Goldfrank's toxicologic emergencies By Lewis R. Goldfrank, Neal Flomenbaum, page 287; Goldfrank's toxicologic emergencies By Lewis R. Goldfrank, Neal Flomenbaum, page 288; Textbook Of Pharmacology By Seth 3rd edn, page29 |
acquarat_33308 | acquarat | If Rs.3250 be divided among Ram, Shyam and Mohan in the ratio of 1/2:1/3:1/4 then the share of each are? | [
"Ram = Rs.1500, Shyam = Rs.1000, Mohan = Rs.750",
"Ram = Rs.7500, Shyam = Rs.1000, Mohan = Rs.750",
"Ram = Rs.1500, Shyam = Rs.1000, Mohan = Rs.250",
"Ram = Rs.1500, Shyam = Rs.1080, Mohan = Rs.750"
] | A | 1/2:1/3:1/4 = 6:4:3
Ram = 6/13 * 3250 = 1500
Shyam = 4/13 * 3250 = 1000
Mohan = 3/13 * 3250 = 750
Answer:A | |
5ee8e753-9fc2-44d4-9fc3-8f03b7a79328 | medmcqa | Aerial dilator used in treatment of congestive hea failure are All except | [
"Hydralizine",
"Nifedipine",
"Prazosin",
"Nitrates"
] | D | Pharmacology | |
8881e1f7-163a-4b20-b8ec-6e15ac879448 | medmcqa | Raxiobacumab is used in:- | [
"Anthrax",
"Pontiac fever",
"Listeria",
"Clostridium"
] | A | Pharmacology | Raxibacumab is used for Anthrax It is a monoclonal antibody and it contains 'bac' in its name so effective against bacillus and contains 'ax' so effective for anthrax. |
acquarat_43756 | acquarat | At present, the ratio between the ages of Arun and Deepak is 4:3. After 6 years, Arun's age will be 26 years. What is the age of Deepak at present? | [
"77 years",
"15 years",
"66 years",
"88 years"
] | B | Let the present ages of Arun and Deepak be 4x and 3x years respectively.
Then, 4x + 6 = 26 => x = 5
Deepak's age = 3x = 15 years.
Answer: B | |
a7816916-9888-4acb-b6c1-3b3b530cc67a | medmcqa | Which malignancy would occur in long-standing multinodular goitre? | [
"Papillary Carcinoma",
"Follicular Carcinoma",
"Anaplastic Carcinoma",
"Medullary Carcinoma"
] | B | Microbiology | The incidence of follicular carcinoma is high in endemic goitrous areas, with long-standing multinodular goitre, possibly owing to persistent TSH stimulation.Dominant or rapidly growing nodules, especially in longstanding goitres, should always be subjected to aspiration cytology. |
7ddf1a4a-0bb0-4001-855d-4c8f7bb1b33d | medmcqa | Parafollicular c cells are derived from? | [
"Ultimobranchial body",
"Pharyngeal pouch 4",
"Pharyngeal pouch 5",
"Neural crest cells"
] | D | Anatomy | All option are true but Neural crest cells is better answer > Ultimobranchial body > Pharyngeal pouch 4 > Pharyngeal pouch 5 |
acquarat_33507 | acquarat | On a sum of money, the simple interest for 2 years is Rs. 326, while the compound interest is Rs. 340, the rate of interest being the same in both the cases. The rate of interest is | [
"15%",
"14.25%",
"8.58%",
"10.5%"
] | C | Explanation:
The difference between compound interest and simple interest on Rs. P for 2 years at R% per annum
= (R × SI)/(2 × 100)
Difference between the compound interest and simple interest = 340 - 326 = 14
(R × SI)/(2 × 100) = 14
(R × 326)/(2 × 100) = 14
R = 8.58%
Answer: Option C | |
ae42beec-e66e-4b46-9fd9-faa5baaf60d0 | medmcqa | Genital filariasis is caused by | [
"Wuchereria bancrofti",
"Onchocerca volvulus",
"Brugia malayi",
"Loa loa"
] | A | Microbiology | Ans. a (Wuchereria bancrofti) (Ref. H - 16th ed., 1260)Wuchereria bancrofti blocks lymphatic vessels: elephantiasis; takes 9 mo-1 yr after bite to become symptomatic.LYMPHATIC FILARIASIS# Lymphatic filariasis is caused by W. bancrofti, B. malayi, or B. timori.# Humans are the only definitive host for the parasite.# Generally, W. bancrofti is noctumally periodic. (Nocturnally periodic forms of microfilariae are scarce in peripheral blood by day and increase at night, whereas subperiodic forms are present in peripheral blood at all times and reach maximal levels in the afternoon)# Natural vectors for W. bancrofti: Culex fatigans in urban settings and anopheline or aedean mosq in rural areas.# B. malayi has 2 forms distinguished by periodicity of microfilaremia. The more common nocturnal form is transmitted in areas of coastal rice fields, while subperiodic form in forests. B.malayi naturally infects cats and humans.Diagnosis# Microfilariae can be found in blood, hydrocele fluid, or in other body fluids, detection by Knott's concentration technique.# Two tests are commercially available: one is ELISA and the other a rapid-format immunochromatographic card test. Both assays have sensitivities that range from 96 to 100% and specificities that approach 100%.# Doppler examination of the scrotum or the female breast may result in the identification of motile adult worms within dilated lymphatics (termed the filaria dance sign).# Retrogradely evolving lymphangitis is a characteristic feature that helps distinguish filarial lymphangitis from typically ascending bacterial lymphangitis.Treatment# Diethylcarbamazine (DEC, 6 mg/kg daily for 12 days), which has both macro- and microfilaricidal properties, remains the treatment of choice for the individual with active lymphatic filariasis (microfilaremia, antigen positivity, or adult worms on ultrasound), although albendazole has also demonstrated macrofilaricidal efficacy.# Side effects of DEC treatment include fever, chills, arthralgias, headaches, nausea, and vomiting.# Ivermectin has a side effect profile similar to that of DEC when used in lymphatic filariasis. |
acquarat_63213 | acquarat | A tank is filled by 3 pipes A,B,C in 10 hours. Pipe C is twice as fast as B and B is twice as fast as A. How much will pipe A alone take to fill the tank ? | [
"20hr",
"52hr",
"70hr",
"66hr"
] | C | ||
0989445a-c3d7-4c3c-af6a-714467e3f284 | medmcqa | A patient is diagnosed with malaria had fever periodicity of 72 hours. Organism implicated is | [
"P.falciparum",
"P.vivax",
"P.ovale",
"P.malariae"
] | D | Microbiology | An attack usually stas with shivering and chills, followed by a high fever, followed by sweating and a return to normal temperature. Ref ananthnarayana and panikers microbiology textbook 8/e |
6fe9edfd-e8aa-4a7b-a84b-f8375fb98742 | medmcqa | In ARDS all are seen EXCEPT - | [
"Dilated bronchioles",
"Edema",
"Fibrosis",
"Alveolar damage"
] | A | Medicine | null |
e9fcf2fa-b990-4c4a-bb35-bb775334657e | medmcqa | Scientist who is considered as father of modern pharmacology | [
"Ram Nath Chopra",
"Oswald Schmiedeberg",
"David Sackett",
"Paul Ehrlich"
] | B | Pharmacology | Oswald Schmiedeberg is father of modern Pharmacology. Sir Ram Nath Chopra-father of Indian pharmacology, David Sackett is father of evidence-based medicine. Paul Ehrlich -father of chemotherapy |
bdf14420-da97-475d-93e2-49a447dc85b6 | medmcqa | For the following medical conditions, select the associated acid base disturbances.Sepsis. | [
"metabolic acidosis and respiratory acidosis",
"metabolic acidosis and respiratory alkalosis",
"metabolic alkalosis and respiratory acidosis",
"metabolic alkalosis and respiratory alkalosis"
] | B | Medicine | Sepsis can cause cardiovascular insufficiency with lactic acidosis, whereas fever and endotoxemia stimulate the respiratory center, causing respiratory alkalosis. |
39c6827e-d0a8-47c1-8233-bd826d829522 | medmcqa | Which is not true of hypocalcaemia: | [
"Can occur in hypoparathyroidism",
"Latent tetany is seen",
"Prolonged QT intervala",
"Inverse relation with Me+ levels"
] | D | Medicine | Answer is D (Inverse relation with Mg++ levels) : Magnesium levels usually bear a direct, not an inverse, relationship with serum Ca++ levels. Severe hypo-magnesemia is associated with hypocalcemia. Intracellular magnesium deficiency results in Hypocalcemia due to : - Impaired PTH secretion - Diminished responsiveness to PTH Hypoparathyroidism is a known cause of Hypocalcemia - Harrison QT interval on ECG is prolonged in Hypocalcemia and is shoened in hypercalcemia - Harrison Tetany is a recognized feature of hypocalcemia, but it may also occur with hypomagnesemia and respiratory alkalosis - Harrison |
13-52 | openbookqa | If you eat food that lots of microorganisms have been on, you could get | [
"float",
"Fly",
"grow a beak",
"get an ailment"
] | D | ||
116004d7-1f7e-499a-899a-3c719648dc6b | medmcqa | The bacterial growth medium shown below belongs to | [
"Enriched medium",
"Enrichment medium",
"Selective medium",
"Indicator medium"
] | B | Microbiology | Image shows chocolate agar an enrichment mediumSimple medium: nutrient agar and Mueller-Hinton agarEnriched medium: Blood agar, chocolate agar, egg, and serum-based medium Enrichment medium: Selenite F and alkaline peptone waterDifferential medium: MacConkey agar and blood agarSelective medium: Lowenstein-Jensen medium, Thayer-Main medium, Wilson and Blair medium Ref: Ananthanarayan 9th edition, p28-33 |
24a58b89-bffd-4769-9d4e-8367f042157b | medmcqa | A 12-year-old girl begins to limp while playing soccer. She has pain in her right leg and upper right thigh. Her temperature is 102degF. X-ray of the femur reveals that the periosteum is eroded. Assuming that this case is managed as an infectious disease, which of the following is the most likely etiologic agent? | [
"Listeria monocytogenes",
"Salmonella enteritidis",
"Staphylococcus saprophyticus",
"Staphylococcus aureus"
] | D | Microbiology | Staphylococcus aureus is a well-known pathogen that is very opportunistic and commonly causes abscess lesions. It routinely may resist phagocytosis by WBCs due to protein A. Osteomyelitis and arthritis, either hematogenous or traumatic, are commonly caused by S. aureus, especially in children. Salmonella are gram-negative. Staphylococcus saprophyticus is a common skin flora and is usually not pathogenic. Streptococcus pneumoniae is seldom or never involved in osteomyelitis infections, as is true for L. monocytogenes. |
e14e95c8-0066-4152-a00d-558e23ea1c0d | medmcqa | A vaccine which requires stringent condition for storage is | [
"DPT",
"OPV",
"BCG",
"TT"
] | B | Anatomy | (Refer: K. Park's Textbook of Preventive and Social medicine, 24thedition, pg no: 222) |
acquarat_64908 | acquarat | If ‘+’ means ‘×’, ‘-‘ means ‘+’, ‘×’ means ‘÷’ and ‘÷’ means ‘-‘ then find the value of;
10 – 9 + 8 × 3 ÷ 20 = | [
"6",
"10",
"14",
"-2"
] | C | ||
acquarat_92013 | acquarat | A person's present age is two-fifth of the age of his mother. After 8 years, he will be one-half of the age of his mother. How old id the mother at present? | [
"46",
"49",
"40",
"21"
] | C | ||
1670d81b-b743-446b-bc8e-dba2d499d297 | medmcqa | Perioral & periorbital skin lesions are seen in: | [
"Idiopathic thrombocytic purpura",
"Cutaneous vasculitis",
"Primary systemic amyloidosis (pinch purpura)",
"Lupus erethematosis"
] | C | Medicine | (C) Primary systemic amyloidosis (pinch purpura)# AMYLOIDOSIS & SKIN LESIONS# Periorbital purpura> Amyloid deposition in the skin gives rise to particular dermatological lesions, which have been thoroughly described. Presentation to the dermatologist may be with any of the following features.> Purpura, petechiae, and ecchymoses occur commonly in the skin and mucous membranes.> They are due to intracutaneous hemorrhage, the result of amyloid infiltrating and weakening blood-vessel walls. These lesions may occur spontaneously and are particularly common in skin folds such as the eyelids, axillae, umbilicus, and anogenital area. Periorbital purpura may arise after coughing, sneezing, performing proctoscopy, or the valsalva maneuver. |
72e1106e-04cd-4bb0-905d-44d42c938409 | medmcqa | In the recent decade Gonococcus become resistant to all the following drugs, EXCEPT: | [
"Penicillin G",
"Azithromycin",
"Tetracycline",
"Ciprofloxacin"
] | B | Pharmacology | Treatment azithromycin 1g po single dose till now not repoed resistance. Ref: KDT, 6th Edition, Page 737 |
6c081801-d3a3-4043-9ab3-ef98cb85964c | medmcqa | In a diabetic patient following condition is most likely caused by which organism? | [
"Fungus",
"Staphylococcus",
"Staptococcus",
"Pseudomonas"
] | D | Medicine | Ans. D. Pseudomonasa. The image is showing inflamed ear along with drainage from the ear.b. In any immune compromised state e.g.: diabetes mellitus, chemotherapy, transplant cases, most common condition of ear is malignant Otitis Externa. It is mainly caused by pseudomonas, staphylococcus aureus etc.c. Infections spreads from floor of the ear canal to bones of the base of skull. This infection may damage the bones. |
acquarat_22529 | acquarat | A, B and C can do a piece of work in 24 days, 30 days and 40 days respectively. They began the work together but C left 6 days before the completion of the work. In how many days was the work completed? | [
"12 days",
"16 days",
"18 days",
"11.5 days"
] | D | One day work of A, B and C = 1/24 + 1/30 + 1/40 = 1/10 Work done by A and B together in the last 6 days = 6*(1/24 + 1/30) = 9/20
Remaining work = 11/20
The number of days required for this initial work = 5.5 days.
The total number of days required = 6 + 5.5 = 11.5 days.Answer: D | |
acquarat_7088 | acquarat | Sum of 3 consecutive even no.'s is 26 more than the 1st no. of the series. Find the middle no.? | [
"8",
"twelve (12)",
"14",
"16"
] | B | Let the numbers be x, x+2 and x+4 then
x + x+2 + x+4 = x+26
3x + 6 = x + 26
2x = 20
\inline \therefore x = 10
\inline \therefore Middle number = x + 2 = 10+2 = 12
B | |
acquarat_62402 | acquarat | A motorcyclist goes from Bombay to Pune, a distance of 180 kms at an average of 20 kmph speed. Another man starts from Bombay by car 2 ½ hours after the first, and reaches Pune ½ hour earlier. What is the ratio of the speed of the motorcycle and the car? | [
"1:2",
"2:3",
"1:9",
"1:5"
] | B | T = 180/20 = 9 h
T = 9 - 3 = 6
Time Ratio = 9:6= 3:2
Speed Ratio = 2:3
Answer: B | |
7c1ed5b8-84c0-467f-bbab-a2a8916bd2a8 | medmcqa | The following condition is not associated with an Anti-phopholipid syndrome: | [
"Venous thrombosis",
"Recurrent foetal loss",
"Thrombocytosis",
"Neurological manifestations"
] | C | Medicine | Ans is C (Thrombocytosis) Antiphospholipid syndrome is associated with thrombocytopenia and not thrombocytosis. Common obstetric complications associated with antiphospholipid syndrome are: Recurrent fetal lossQ IUGRQ Pregnancy associated hypeensionQ Placental abruptionQ Recurrent thrombotic eventsQ ThrombocytopeniaQ (and not thrombocytosis). |
acquarat_9405 | acquarat | Meg and Bob are among the 3 participants in a cycling race. If each participant finishes the race and no two participants finish at the same time, in how many different possible orders can the participants finish the race so that Meg finishes ahead of Bob? | [
"24",
"3",
"60",
"90"
] | B | Total # of ways the race can be finished is 3!. In half of the cases Meg finishes ahead of Bob and in other half Bob finishes ahead of Meg. So, ways Meg to finish ahead of Bob is 3!/2=3.
Answer: B. | |
608b5351-66ab-4c88-982f-350713d43538 | medmcqa | Rofecoxib as compared to indomethacin is: | [
"Less likely to cause gastric ulcer and their complications",
"Likely to be more effective in rheumatoid ahritis",
"Not likely to produce renal complications",
"All of the above"
] | A | Pharmacology | Selective COX-2 inhibitors are less likely to cause GI complications like PUD. However as COX-2 is also present constitutively in the kidney, chances of renal complications are similar. These drugs have similar or less efficacy than non-selective COX inhibitors. |
4f66fc68-121c-4cdc-b1ee-d1c1af19478a | medmcqa | Alkalinity of urine is done in - | [
"Barbiturate poisoning",
"Lithium toxicity",
"Alprazolam overdose",
"Diazepam toxicity"
] | A | Pharmacology | Ans. is 'a' i.e., Barbiturate poisoning Alkanization of urine o Acidic drugs are more ionized (lipid insoluble / polar / water soluble) at alkaline pH. So, they cannot be absorbed from tubular lumen, i.e. their excretion by kidney is enhanced by alkanization of urine. Such acidic drugs are Barbiturates and Salicylate. o Alkanization of urine is done by i.v. infusion of sodium bicarbonate. |
acquarat_43222 | acquarat | A sum of money at simple interest amounts to $ 780 in 3 years and to $930 in 4 years. The sum is: | [
"$153",
"$698",
"$330",
"$549"
] | C | ||
c1f2c9d5-50ed-4c2a-80f0-72644b003f4a | medmcqa | Which drug inhibits absorption of cholesterol from intestine? | [
"Resins",
"Ezetimibe",
"Niacin",
"Orlistat"
] | B | Pharmacology | ANSWER: (B) EzetimibeREF: Harrison's 18th ed ch: 356Cholesterol ivithin the lumen of the small intestine is derived from the diet (about one-third) and the bile (about two-thirds) and is actively absorbed by the enter ocyte through a process that involves the protein N PCI LI.Ezetimibe is a cholesterol absorption inhibitor that binds directly to and inhibits NPCILI and blocks the intestinal absorption of cholesterol. Ezetimibe (10 mg) inhibits cholesterol absorption by almost 60%, resulting in a reduction in delivery of dietary sterols in the liver and an increase in hepatic LDL receptor expression.The mean reduction in plasma LDL-C on Ezetimibe (10 mg) is 18%, and the effect is additive when used in combination with a statin. Effects on triglyceride and HDL-C levels are negligible, and no cardiovascular outcome data have been reported.When used in combination with a statin, monitoring of liver transaminases is recommended. The only role for Ezetimibe in monotherapy is in patients who do not tolerate statins; the drug is often added to a statin in patients who require further LDL-C reduction. |
27b73952-f4d2-45a1-94b4-926cd3fdbb78 | medmcqa | Bevacizumab is used in: | [
"Diabetic retinopathy",
"Glaucoma",
"Diabetic nephropathy",
"Neuropathy"
] | A | Pharmacology | Bevacizumab is the trade name of Avastin - an angiogenesis inhibitor. It is a monoclonal antibody that blocks angiogenesis by inhibiting VGRF-A. In diabetic retinopathy, there will be blood vessel growth and proliferation due to VGRF which is inhibited by bevacizumab It is used for the treatment of colorectal cancer, lung cancer, breast cancer, renal cancer, diabetic retinopathy REF KD Tripathi 8th ed |
acquarat_19968 | acquarat | The sum of money at compound interest amounts to thrice itself in 3 years. In how many years will it be 9 times itself? | [
"5 years",
"7 years",
"9 years",
"6 years"
] | D | 100 ---- 300 --- 3
900 --- 3
----
6 years
Answer: D | |
bd190e85-36ab-47bd-a11b-005e3b5d833e | medmcqa | Milk-Alkali syndrome may be caused by ingestion of - | [
"Calcium-carbonate",
"Magnesium sulphate",
"Aluminium trisilicate",
"Aluminium hydroxide"
] | A | Pharmacology | Ans. is 'a' i.e., Calcium carbonate When Milk was prescribed with 'Calcium Carbonate' in the past, it produced a syndrome (milk alkali syndrome) characterised by : o Headache/Anorexia/Weakness/Abdominal discomfo o Abnormal Ca' deposits & Renal stones. |
logical_deduction_159 | logical_deduction_five_objects | The following paragraphs each describe a set of five objects arranged in a fixed order. The statements are logically consistent within each paragraph. On a shelf, there are five books: a green book, a blue book, a brown book, a gray book, and a red book. The green book is to the left of the brown book. The gray book is to the left of the blue book. The green book is to the right of the blue book. The red book is the leftmost. | [
"The blue book is the leftmost",
"The brown book is the leftmost",
"The gray book is the leftmost",
"The red book is the leftmost"
] | D | ||
acquarat_24242 | acquarat | 7^6n -1^ 6n When n is an integer > 0 is divisible by | [
"119",
"127",
"141",
"154"
] | B | 127
B | |
acquarat_31055 | acquarat | How many Kilograms of Pure water is to be added to 100 Kilograms of a 30% saline solution to make it a 10% saline solution. | [
"100",
"200",
"300",
"400"
] | B | Let x be the weights, in Kilograms, of pure water to be added. Let y be the weight, in Kilograms, of the 10% solution. Hence
x + 100 = y
x = 200 Kilograms.
Answer B | |
acquarat_68019 | acquarat | A train travels from station A to station B. If it travels at a speed of 100 miles per hour, it ends up reaching the station 30 minutes late. If it travels at 120 miles per hour, it reaches the station 30 minutes early. What is the amount of time that the train is scheduled to take for the journey and what is the distance between the stations? | [
"2 hours, 225 miles",
"5.5 hours, 600 miles",
"4 hours, 450 miles",
"5 hours, 550 miles"
] | B | ||
acquarat_17413 | acquarat | Dawson purchased a house for Rs.78000 and a site for Rs.12000 respectively, if he sold the house for Rs.79000 and the site for Rs.15000, then find the resultant percentage of gain? | [
"4.43%",
"4.44%",
"4.45%",
"4.46%"
] | B | Sol.
Total CP = 90000 & total SP = 94000 ⇒ gain = SP/CP = 94000/90000 = 1.0444 = 4.44%.
Answer B | |
a35b2ee1-74d5-4e6b-b1f6-2ed06c6b1608 | medmcqa | True about DNA reconstruction technology - | [
"Restriction endonucleases involved",
"DNA ligase is used",
"Reverse transcriptase needed",
"All of these"
] | D | Biochemistry | |
76622c16-d924-4c07-b4b3-cd7320df024d | medmcqa | Wolf Chaikoff effect- | [
"Excess iodine intake causes hypothyroidism",
"Iodine induced hypehyroidism",
"Thyrotoxicosis due to excessive amount of iodine ingestion",
"Drug induced hypehyroidism"
] | A | Medicine | Wolff-Chaikoff effect is a phenomenon in which excess iodide transiently inhibits thyroid iodide organification by thyroid peroxidase enzyme thus inhibiting thyroid hormone production leadung to hypothyroidism. In individuals with a normal thyroid, the gland escapes from this inhibitory effect and iodide organification resumes; the suppressive action of high iodide may persist, however, in patients with underlying autoimmune thyroid disease. Reference : page 2285 Harrison's Principles of Internal Medicine 19th edition |
acquarat_52871 | acquarat | If x is odd and y is odd, then xy, | [
"Odd",
"Odd whenever x-y is even",
"Even whenever x+y is odd",
"Even"
] | A | x is odd and y is odd, then xy is
Let's take x=7 and y=3.
x*y=7*3=21.
x*y=odd.
Option: A | |
11-476 | openbookqa | Converting electricity into different types of energy may be done by | [
"rocks",
"folding chairs",
"squirrels",
"DVD players"
] | D | ||
12-145 | openbookqa | Which of these items contains a fat soluble vitamin? | [
"dog",
"yogurt",
"cat",
"water"
] | B | ||
9d09a6ed-526a-486d-a5df-7645e78fe5a1 | medmcqa | EBV causes all EXCEPT: | [
"Nasopharyngeal carcinoma",
"Burkitt s lymphoma",
"Verrucous lymphoma",
"Hodgkin's lymphoma"
] | C | Microbiology | ANSWER: (C) Verrucous lymphomaREF: Jawett's 24th edition Section IV. Virology > Chapter 33. Herpesviruses Cancer by EBV:EBV is recognized as a cause of Burkitt's lymphoma, nasopharyngeal carcinoma, Hodgkins disease, and some other lymphomas. Sera from patients with Burkitt's lymphoma or nasopharyngeal carcinoma contain elevated levels of antibody to virus-specific antigens, and the tumor tissues contain EBV DNA and express a limited number of viral genes. EBV-associated B cell lymphomas are a complication for immunodeficient patients |
3RYC5T2D73S5GLUDV410T24SCDURP0 | qasc | What gender of species has more stamina? | [
"two",
"tuna",
"snail",
"Males"
] | D | ||
0900568c-62f7-4a19-b89f-18f143b2a707 | medmcqa | Prolonged treatment with INH leads to deficiency of? | [
"Pyridoxine",
"Thiamine",
"Pantothenic acid",
"Niacin"
] | A | Pharmacology | |
NYSEDREGENTS_2015_8_1 | arc_easy | Which sequence identifies the levels of organization of body structures in a human from simplest to most complex? | [
"cell -> organ -> tissue -> organ system",
"organ system -> cell -> tissue -> organ",
"tissue -> organ -> organ system -> cell",
"cell -> tissue -> organ -> organ system"
] | D | ||
acquarat_76527 | acquarat | how many 4x5x8 cubes could fit in a 10x16x84 box? | [
"84",
"90",
"85",
"77"
] | A | The answer is A) 84. The 10x16x84 box has an area of 13,440. The 4x5x8 cubes have an area of 160. If you divide 13,440 by 160, you get 84. | |
dab794dd-f71b-45a5-89c8-84735058cd87 | medmcqa | An 18-year-old woman visits her physician because of 3 weeks of malaise, 2 weeks of fever, and a sore throat. Physical examination shows pharyngeal infection with enlarged tonsils and a patchy, white exudate; enlarged, palpable anterior and posterior cervical, axillary, and inguinal lymph nodes; tenderness in the right upper quadrant; and minimal splenomegaly. Laboratory data show hemoglobin 14 g/dL; hematocrit 42%; platelets 380,000/mL; WBC 8500/mL, with 35% segmented neutrophils, 1% eosinophils, and 64% lymphocytes, of which 36% were atypical. Which of the following is the most likely diagnosis? | [
"infectious hepatitis",
"lymphocytic leukemia",
"infectious mononucleosis",
"Hodgkin's disease"
] | C | Medicine | |
246783ea-9c70-4139-a89a-d72825d29235 | medmcqa | Which of the following is not a neural crest derivative: | [
"Adrenal coex",
"Odontoblast",
"Melanocytes",
"None of the above"
] | A | Anatomy | Neural crest derivatives include:Connective tissue and bones of the face and skullCranial nerve ganglia Cells of the thyroid glandConotruncal septum in the heaOdontoblastsDermis in face and neckSpinal (dorsal root) gangliaSympathetic chain and preaoic gangliaParasympathetic ganglia of the gastrointestinal tractAdrenal medullaSchwann cellsGlial cellsMeninges (forebrain)MelanocytesSmooth muscle cells to blood vessels of the face and forebrain Ref: Langman's embryology 11th edition Chapter 7. |
acquarat_88316 | acquarat | How many positive integers less than 300 can be formed using the numbers 1, 2, 3 and 5 for the digits? | [
"48",
"52",
"66",
"68"
] | B | Notice that we can find the number of 2 and 3 digit numbers by just assuming the first digit can also be zero:
0 1 1
1 2 2
2 3 3
2 5 5
Number of possibilities = 3*4*4 = 48.
Then, just add up the number of 1 digits numbers = 4, so total is 48+4 = 52.
Answer: B | |
14-588 | openbookqa | An alien creature is found on earth. Researchers discover that it will eat worms, insects and small rodents, but shuns bananas, leaves and cucumbers. Which of these could be true? | [
"the creature is a carnivore",
"the creature is a vegan",
"the creature is something other than an omnivore",
"the creature loves to eat cucumbers"
] | A | ||
acquarat_9261 | acquarat | There are two sets A and B. The range of set A is 7, and the range of set B is 13. If the two sets are combined and get a new set W, which cannot be the range of the set W? | [
"8",
"B.11",
"C.14",
"D.17"
] | B | Let Set A has 1,8 as elements
B has 1,14 as elements.. So Range for Combined set W becomes 14-1=13
For range to be 14,
A = 1,8
B= 2,15 (Range=14)
For range to be 17
A=1,8
B= 5,18
For range to be 21:
A=1,8
B= 9 ,22
So we are left with A and B.
Now consider A has elements A= -1,-8 and Thus Range =-1-(-8) =7
So for Range of combined set to be 11, B needs to have largest elementxso that x- (-8)=11 or x=3...But if x=3, the largest element in Combined Set then smallest element in the combined set will be 3-y=13 or y=-10....And the range of combined set 3-(-10)=13...
Consider Option A
A=-1,-8
B= y,x where y and x are smallest and largest element in Set B
Elements of Combined Set: -8,-1,y and x
Now x-(-8)=8 or x=0, then x-y=13 or y=-13...
Range of Combined Set: 0-(-13)= 13...
I don't see how range can be 8 or 11...Can you please post the source and explanation for the OA in spoiler...=B | |
acquarat_9504 | acquarat | Anil grows tomatoes in his backyard which is in the shape of a square. Each tomato takes 1 cm2 in his backyard. This year, he has been able to grow 131 more tomatoes than last year. The shape of the backyard remained a square. How many tomatoes did Anil produce this year? | [
"4225",
"4096",
"4356",
"Insufficient Data"
] | C | DETAILED SOLUTION
Let the area of backyard be x2 this year and y2 last year
∴ X2- Y2 = 131
=) (X+Y) (X-Y) = 131
Now, 131 is a prime number (a unique one too. Check out its properties on Google). Also, always identify the prime number given in a question. Might be helpful in cracking the solution.
=) (X+Y) (X-Y) = 131 x 1
=) X+Y = 131
X-Y = 1
=) 2X = 132 =) X = 66
and Y = 65
∴ Number of tomatoes produced this year = 662 = 4356
Correct Choice (C) | |
acquarat_38023 | acquarat | If n is a positive integer and n^2 is divisible by 18, then what is the largest positive integer that must divide n? | [
"3",
"4",
"6",
"8"
] | C | 18 = 2 * 3^2
If 18 divides n^2, then n must be divisible by 2 * 3 = 6
The answer is C. | |
acquarat_75481 | acquarat | The slant height of a cone is 15 cm and radius of the base is 3cm, find the curved surface of the cone? | [
"26",
"134",
"141",
"190"
] | C | ||
acquarat_63128 | acquarat | A man has a savings account of $500. if he receives $50.6 for every $100 as interest and pays a tax of $15.5 on every $100 how many years will it take for his savings to double. | [
"2.85",
"5",
"4.1",
"3.5"
] | A | Annual increase is (100 + 50.6 - 15.5)*5=675.5
Hence every year there is an increase of 175.5
for his saving to double he needs additional $500
therefore $500/175.5=2.85
correct option is A) | |
acquarat_64355 | acquarat | The difference of the squares of two consecutive even integers is divisible by which of the following integers ? | [
"3",
"4",
"6",
"7"
] | B | ||
acquarat_5213 | acquarat | What amount does Kiran get if he invests Rs. 18000 at 15% p.a. simple interest for five years? | [
"31500",
"27773",
"29989",
"28800"
] | A | Simple interest = (18000 * 5 * 15)/100 = Rs. 13500
Amount = P + I = 18000 + 13500 = Rs. 31500
Answer: A | |
acquarat_20999 | acquarat | The sum of all the integers k such that –24 < k < 24 is | [
"0",
"-2",
"-45",
"-49"
] | C | -23------------------0-----------------23
values upto+23 cancels outwe are left with only -23-22 sum of which is - 45. hence option D.
C | |
04ac12db-88f9-405b-9363-272f03d14013 | medmcqa | Indication for administration of AS V (Antisnake venom) in Viper bite? | [
"Renal failure",
"DIC",
"Soft tissue swelling crossing joint nearby the site of bite",
"All of the above"
] | D | Medicine | |
acquarat_5537 | acquarat | Money invested at x%, compounded annually, triples in value in approximately every 112/x years. If $1800 is invested at a rate of 8%, compounded annually, what will be its approximate worth in 28 years? | [
"$16,200",
"$5,600",
"$8,100",
"$15,000"
] | A | ||
acquarat_16463 | acquarat | Two trains are moving in opposite directions at 60 km/hr and 90 km/hr. Their lengths are 1.10 km and 0.9 km respectively. The time taken by the slower train to cross the faster train in seconds is? | [
"12",
"77",
"48",
"99"
] | C | Relative speed = 60 + 90 = 150 km/hr.
= 150 * 5/18 = 125/3 m/sec.
Distance covered = 1.10 + 0.9 = 2 km = 2000 m.
Required time = 2000 * 3/125 = 48 sec.
Answer: C | |
acquarat_42122 | acquarat | The integer x is divisible by both 15 and 25. Which of the following must be an integer? | [
"x/11",
"x/75",
"x/84",
"x/36"
] | B | Prime factorization of 15 = 5*3
Prime factorization of 25= 5*5
LCM of 15 and 25 = 5^2 * 3 = 75
Therefore x/75 must be an integer
Answer B | |
af0e47cc-0dac-4962-8604-7578d7c988eb | medmcqa | Cytochrome 450 is located in - | [
"Mitochondria",
"Cytoplasm",
"Endoplasmic reticulum",
"Golgi apparatus"
] | C | Biochemistry | Ans. is 'c' i.e., Endoplasmic reticulumo The drug metabolizing enzymes are divided into two types :1. Microsomal# These are located on smooth endoplasmic reticulum primarily in liver, also in kidney, intestinal mucosa and lungs.# Examples are monooxygenase, cytochrome P450, glucronyl transferase.# They catalyze most of the oxidation, reduction, hydrolysis and glucuronide conjugation.# They are inducible by drugs, diet and other agencies.2. Non microsomal# These are present in the cytoplasm and mitochondria of hepatic cells as well as in other tissues including plasma.# Examples are flavoprotein oxidase, esterases, amidases and conjugases.# They catalyze some oxidation and reduction, many hydrolysis and all conjugation except glucuronidation.# They are not inducible but many show genetic polymorphism (acetyl transferase, pseudocholinesterase). |
89556543-fa48-4987-b63b-faaef1603692 | medmcqa | Xantheurenic acid is produced in - | [
"Tyrosine metabolism",
"Tryptophan metabolism",
"Cysteine metabolism",
"Valine metabolism"
] | B | Biochemistry | Ans. is 'b' i.e., Tryptophan metabolism o Serotonin secretion is increased in carcinoid syndrome which causes flushingQ. VasoconstrictionQ, diarrheaQ and bronchospasm (respiratory distress),Metabolism of tryptophano Tryptophan is an essential amino acidQ, containing indol ringQ. Tryptophan is oxidized to produce alanine (which is glucogenic) and acetyl-CoA (which is ketogenic). Therefore, tryptophan is both glucogenic and ketogenic. Tryptophan is precursor for the biosynthess of niacinQ (a vitaminQ), serotonin (a neurotransmitter) and melatoninQ (a hormone).o Tryptophan metabolism occurs by two pathways: (i) kinurenine pathwayQ and (ii) serotonine pathway.1) Kynurenine pathway :- Tryptophan is oxidized to kynurenine, which is then converted to either niacin (nicotinic acid) or acetyl-CoA. In the reaction alanine is also produced. o Deficiency of tryptophan can cause deficiency of niacin (if also deficient in diet). This can leads to Pallegra: dermatitis, diarrhea and dementia.o For every 60 mg of tryptophan, 1 mg. equivalent of niacin can be generatedQ.o In vitamin B6 deficiency the metabolism is shuted to xanthurenic acid. Therefore, xantheurenic acid excretion is increased in urine.2) Serotonin pathway:- Tryptophan is first oxidized to serotonine which is further converted to melatonin. |
acquarat_60163 | acquarat | In what ratio must rice at Rs.30 per kg mixed with rice at Rs.10.80 per kg so that the mixture be worth Rs.10per kg Ans | [
"8:7",
"8:8",
"8:3",
"8:2"
] | A | If 2 ingredients are mixed, then the required ratio is given by, the rule of allegation C.P of a unit quantity of cheaper (c) C.P. of a unit quantity of dearer (d)
Mean Price (m) d-m m-c Required ratio is cheaper quantity : dearer quantity = (d-m) : (m-c) Answer with Explanation: By the rule of allegation i. C.P of 1 Kg of rice of I kind (p) = 930 ii. C.P of 1 Kg of rice of II kind (p) = 1080 iii. Mean price (p) = 1000 iv. d – m = 1080-1000 = 80 v. m – c = 1000 – 930 = 70 Required ratio = 80 : 70
= 8 : 7
Answer:A | |
531d39e8-f020-4784-80a9-47cb27911006 | medmcqa | Microbiologic studies on a gram-positive coccus isolated from a skin abscess demonstrate a positive catalase test and a positive coagulase test. This is most consistent with which of the following organisms? | [
"S. aureus",
"S. epidermidis",
"S. pneumoniae",
"S. pyogenes"
] | A | Microbiology | All of the organisms listed are gram-positive cocci. The positive catalase test excludes the Streptococci, S. pyogenes, and S. pneumoniae. Of the Staphylococci, only S. aureus has a positive coagulase test. S. epidermidis and S. saprophyticus are coagulase-negative Staphylococci. Ref: Ray C.G., Ryan K.J. (2010). Chapter 24. Staphylococci. In C.G. Ray, K.J. Ryan (Eds), Sherris Medical Microbiology, 5e. |
acquarat_26309 | acquarat | z is a positive integer and multiple of 2; v = 4^z, what is the remainder when v is divided by 10? | [
"10",
"6",
"4",
"0"
] | B | It is essential to recognize that the remainder when an integer is divided by 10 is simply the units digit of that integer. To help see this, consider the following examples:
4/10 is 0 with a remainder of 4
14/10 is 1 with a remainder of 4
5/10 is 0 with a remainder of 5
105/10 is 10 with a remainder of 5
It is also essential to remember that the z is a positive integer and multiple of 2. Any integer that is a multiple of 2 is an even number. So, z must be a positive even integer.
With these two observations, the question can be simplified to:what is the units digit of 4 raised to an even positive integer?
The units digit of 4 raised to an integer follows a specific repeating pattern:
4^1 = 4
4^2 = 16
4^3 = 64
4^4 = 256
4^(odd number) --> units digit of 4
4^(even number) --> units digit of 6
There is a clear pattern regarding the units digit. 4 raised to any odd integer has a units digit of 4 while 4 raised to any even integer has a units digit of 6.
Since z must be an even integer, the units digit of v=4^z will always be 6. Consequently, the remainder when v=4^z is divided by 10 will always be 6.
In case this is too theoretical, consider the following examples:
z=2 --> v=4^z=16 --> v/10 = 1 with a remainder of 6
z=4 --> v=4^z=256 --> v/10 = 25 with a remainder of 6
z=6 --> v=4^z=4096 --> v/10 = 409 with a remainder of 6
z=8 --> v=4^z=65536 --> v/10 = 6553 with a remainder of 6
Answer: B. |
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