question stringlengths 10 867 | subject stringclasses 24
values | choices listlengths 4 4 | answer stringclasses 4
values |
|---|---|---|---|
Which of the following salts is expected to produce an alkaline solution when one mole is dissolved in one liter of water? | high_school_chemistry | [
"NaClO4",
"CaCl2",
"NH4Br",
"Na2S"
] | D |
An experiment was performed to determine the moles of hydrogen gas formed (collected over water) when an acid reacts with magnesium metal. To do this, a piece of dry magnesium was weighed. Then 50 mL of hydrogen was collected. Next the Mg was dried to remove about 0.1 mL of water and weighed again to see how much Mg ha... | high_school_chemistry | [
"Forgetting to dry the magnesium before both weighings",
"Failing to take the vapor pressure of water (23 torr at 25 °C) into account",
"Failing to convert °C to K",
"Reading the gas-collecting container to ±20 mL"
] | C |
The equilibrium constant of a certain reaction is 2.6 × 10^8 at 25 °C. What is the value of ΔG°? | high_school_chemistry | [
"-48.0 kJ/mol",
"20.8 J mol-1",
"4.68 × 10^-3 kJ/mol",
"-4.03 kJ mol-1"
] | A |
A sample of an unknown chloride compound was dissolved in water, and then titrated with excess Pb(NO3)2 to create a precipitate. After drying, it is determined there are 0.0050 mol of precipitate present. What mass of chloride is present in the original sample? | high_school_chemistry | [
"0.177 g",
"0.355 g",
"0.522 g",
"0.710 g"
] | B |
Which of the following pairs of ions would make the best buffer with a basic pH? Ka for HC3H2O2 = 1.75 × 10^-5. Ka for HPO42- = 4.8 × 10^-13. | high_school_chemistry | [
"H2SO4 and H2PO4",
"HPO42- and NaH2PO4-",
"HC3H2O2 and NaC3H2O2",
"NaOH and HC2H3O2"
] | B |
4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g) This reaction will experience a rate increase by the addition of a cataylst such as platinum. Which of the following best explains why? | high_school_chemistry | [
"The catalyst increases the overall frequency of collisions in the reactant molecules.",
"The catalyst increases the frequency of collisions that occur at the proper orientation in the reactant molecules.",
"The catalyst introduces a new reaction mechanism for the reaction.",
"The catalyst increases the activ... | C |
The rate law for the reaction of 2 A + B → 2 P is | high_school_chemistry | [
"impossible to determine without experimental data",
"[A]2[B]",
"k[A]2[B]",
"second order with respect to A"
] | A |
Which is the easiest way to burn a silver coin? | high_school_chemistry | [
"Hold the silver coin with crucible tongs, and heat strongly in the flame of a Bunsen burner.",
"Use the method in (A), but use an oxyacetylene torch to reach a higher temperature.",
"Grind the silver coin into very small, dust-sized particles, and spray the particles into a Bunsen burner flame.",
"Dissolve t... | C |
Why do vinegar (a dilute solution of ethanoic acid in water) and vegetable oil (long-chain organic acids esterified with glycerol) not mix to form solutions? | high_school_chemistry | [
"The attractive forces in vinegar are much stronger than those in vegetable oil, so the liquids always separate into two phases.",
"Organic compounds rarely dissolve in water.",
"Attractive forces in vinegar are mainly hydrogen bonding, while those in vegetable oil are due to instantaneous dipoles.",
"The unf... | D |
In Python 3, which of the following function removes all leading and trailing whitespace in string? | high_school_computer_science | [
"replace(old, new [, max])",
"strip([chars])",
"swapcase()",
"title()"
] | B |
Which of the following best describes a Web server? | high_school_computer_science | [
"A computer system that delivers Web pages to clients",
"A computer system that determines the shortest path between two computers over the Internet",
"A computer system running software that provides a user-friendly interface for creating Web pages",
"A computer system that translates domain names to IP addr... | A |
A user purchased a new smart home device with embedded software and connected the device to a home network. The user then registered the device with the manufacturer, setting up an account using a personal e-mail and password. Which of the following explains how a phishing attack could occur against the user of the sma... | high_school_computer_science | [
"A vulnerability in the device’s software is exploited to gain unauthorized access to other devices on the user’s home network.",
"A vulnerability in the device’s software is exploited to install software that reveals the user’s password to an unauthorized individual.",
"The user is sent an e-mail appearing to ... | C |
In Python 3, let r = lambda q: q * 2. What is r(3)? | high_school_computer_science | [
"2",
"6",
"3",
"1"
] | B |
Consider the following list. - Assembly language - Block-based programming language - Logic gate - Machine language Which of the following arranges the list in order from highest level of abstraction to lowest level of abstraction? | high_school_computer_science | [
"Block-based programming language, assembly language, machine language, logic gate",
"Block-based programming language, machine language, assembly language, logic gate",
"Block-based programming language, machine language, logic gate, assembly language",
"Machine language, block-based programming language, as... | A |
A large hospital maintains a list of patients’ records in no particular order. To find the record of a given patient, which represents the most efficient method that will work? | high_school_computer_science | [
"Do a sequential search on the name field of the records.",
"Do a binary search on the name field of the records.",
"Use insertion sort to sort the records alphabetically by name; then do a sequential search on the name field of the records.",
"Usemergesort to sort the records alphabetically by name; then do ... | A |
Which types of functions grow the slowest? | high_school_computer_science | [
"O(N^(1/2))",
"O(N^(1/4))",
"O(N^(1/N))",
"O(N)"
] | C |
Which is a valid expression in Python 3.5? | high_school_computer_science | [
"sort('ab')",
"sorted('ab')",
"\"ab\".sort()",
"1/0"
] | B |
Consider the following segment of code.
String word = "conflagration";
int x = word.indexOf("flag");
String s = word.substring(0, x);
What will be the result of executing the above segment? | high_school_computer_science | [
"String s will be the empty string.",
"String s will contain \"flag\".",
"String s will contain \"conf\".",
"String s will contain \"con\"."
] | D |
Exits on a highway are numbered consecutively from 1 to 50. The distance from exit 41 to exit 50 is 100 km. If each exit is at least 6 km from the next exit, what is the longest possible distance, in kilometers, between exit 47 and exit 48? | high_school_mathematics | [
"52",
"51",
"50",
"49"
] | A |
In a group of 11 people, T of them always tell the truth, and L always lie. Each person names two other people and claims that of the two, exactly one of them is lying. Each person is named in this way by exactly two other people. Find the sum of all possible values of T. | high_school_mathematics | [
"30",
"12",
"20",
"6"
] | B |
How many integers 1-9 are divisors of the five-digit number 24,516? | high_school_mathematics | [
"6",
"5",
"1",
"32"
] | A |
Sam has $\frac{5}{8}$ of a pound of chocolate. If he eats $\frac{1}{3}$ of the chocolate he has, how many pounds of chocolate does he eat? | high_school_mathematics | [
"\\frac{5}{12}",
"\\frac{5}{24}",
"\\frac{3}{24}",
"\\frac{3}{24}"
] | B |
Alex grows an initial culture of 100 Rhizopus stolonifer fungi on a sample of bread. She wants to model the growth of the fungi according to the exponential equation A = Pe^(rt), where A is the final number of fungi, P is the initial number, r is the growth rate, and t is time elapsed in hours. If after 5 hours she mea... | high_school_mathematics | [
"0.403",
"0.863",
"2.015",
"4.317"
] | A |
What is the product of the greatest even prime number and the least odd prime number? | high_school_mathematics | [
"6",
"9",
"12",
"14"
] | A |
What is the maximum value of $4(x + 7)(2 - x)$, over all real numbers $x$? | high_school_mathematics | [
"-2.5",
"4",
"81",
"56"
] | C |
Divide $11$ by the reciprocal of $1815 \div 11$. | high_school_mathematics | [
"111",
"1815",
"121",
"68"
] | B |
When $\sqrt[3]{-128}$ is simplified, the result is $a\sqrt[3]{b}$, where $a$ is an integer, and $b$ is a positive integer. If $b$ is as small as possible, then what is $a+b$? | high_school_mathematics | [
"2",
"-4",
"6",
"-2"
] | D |
Given that $a(a+2b) = \frac{104}3$, $b(b+2c) = \frac{7}{9}$, and $c(c+2a) = -7$, find $|a+b+c|$. | high_school_mathematics | [
"\\frac{23}{3}",
"\\frac{5}{3}",
"\\frac{16}{3}",
"\\frac{10}{3}"
] | C |
Let $f(x) = (x+2)^2-5$. If the domain of $f$ is all real numbers, then $f$ does not have an inverse function, but if we restrict the domain of $f$ to an interval $[c,\infty)$, then $f$ may have an inverse function. What is the smallest value of $c$ we can use here, so that $f$ does have an inverse function? | high_school_mathematics | [
"-2",
"-5",
"3",
"-8"
] | A |
A circle passes through the points (3, 4) and (5, 7). Which of the following points CANNOT lie on the circle? | high_school_mathematics | [
"(–2, –1)",
"(–1, –2)",
"(5, 5)",
"(6, 4)"
] | B |
How many square units are in the region satisfying the inequalities $y \ge |x|$ and $y \le -|x|+3$? Express your answer as a decimal. | high_school_mathematics | [
"4.5",
"2.25",
"6.6",
"3.3"
] | A |
Andy wants to read several books from the required summer reading list. He must read one each from fiction, nonfiction, science, and history. There are 15 fiction, 12 nonfiction, 5 science, and 21 history books listed. How many different summer reading programs could he select? | high_school_mathematics | [
"53",
"265",
"8910",
"18,900"
] | D |
When a spaceship full of scientists landed on Planet Q, they found that $\frac{17}{40}$ of the $160$ aliens had $3$ eyes. How many aliens had $3$ eyes? | high_school_mathematics | [
"67",
"35",
"36",
"68"
] | D |
If the point $(3,6)$ is on the graph of $y=g(x)$, and $h(x)=(g(x))^2$ for all $x$, then there is one point that must be on the graph of $y=h(x)$. What is the sum of the coordinates of that point? | high_school_mathematics | [
"3",
"6",
"39",
"36"
] | C |
What is the minimum value of $a^2+6a-7$? | high_school_mathematics | [
"-30",
"-12",
"-7",
"-16"
] | D |
Simplify $\frac{2+2i}{-3+4i}$. Express your answer as a complex number in the form $a+bi$, where $a$ and $b$ are real numbers. | high_school_mathematics | [
"2-14i",
"\\frac{2}{25} + \\frac{-14}{25}i",
"1+0i",
"0-1i"
] | B |
Compute $i+i^2+i^3+\cdots+i^{258}+i^{259}$. | high_school_mathematics | [
"-1",
"1",
"i",
"0"
] | A |
For what value of c on 0 < x < 1 is the tangent to the graph of f (x) = e^x - x^2 parallel to the secant line on the interval [0,1]? | high_school_mathematics | [
"-0.248",
"0.351",
"0.5",
"0.693"
] | B |
Let $h(4x-1) = 2x + 7$. For what value of $x$ is $h(x) = x$? | high_school_mathematics | [
"420",
"69",
"7",
"15"
] | D |
If f : (x, y) → (x + y, 2y – x) for every coordinate pair in the xy-plane, for what points (x, y) is it true that f : (x, y) → (x, y)? | high_school_mathematics | [
"(0, 0) only",
"The set of points (x, y) such that x = 0",
"The set of points (x, y) such that y = 0",
"The set of points (x, y) such that x = y"
] | A |
Find the sum of the primes between 100 and 200, inclusive, that are 1 or 2 more than a perfect square. | high_school_mathematics | [
"298",
"126",
"592",
"396"
] | A |
Solve for $x$: $(-\frac{1}{3})(-4 -3x)=\frac{1}{2}$ | high_school_mathematics | [
"-\\frac{5}{6}",
"\\frac{7}{6}",
"\\frac{5}{3}",
"\\frac{1}{6}"
] | A |
There are three real numbers $x$ that are not in the domain of $$f(x) = \frac{1}{1+\frac{1}{1+\frac 1x}}.$$ What is the sum of those three numbers? | high_school_mathematics | [
"0.5",
"0",
"-1",
"-1.5"
] | D |
How many positive cubes divide $3!\cdot 5!\cdot 7!\,$? | high_school_mathematics | [
"6",
"4",
"3",
"1"
] | A |
Joe's batting average is .323. (That is, he averages 0.323 hits per at bat.) What is the probability that he will get three hits in three at-bats? Express your answer as a decimal to the nearest hundredth. | high_school_mathematics | [
"0.03",
"0.01",
"0.3",
"0.1"
] | A |
A teacher can grade 20 papers during an uninterrupted planning period and 10 papers for each hour he spends at home grading. What function models the number of papers he can grade given that he has 2 uninterrupted planning periods and x full hours devoted to grading at home? | high_school_mathematics | [
"20 + 2x",
"20x + 10",
"40x + 10",
"40 + 10x"
] | D |
What is the smallest two-digit integer $n$ such that switching its digits and then adding 3 results in $2n$? | high_school_mathematics | [
"6",
"12",
"96",
"102"
] | B |
A lightweight toy car crashes head-on into a heavier toy truck. Which of the following statements is true as a result of the collision? I. The car will experience a greater impulse than the truck. II. The car will experience a greater change in momentum than the truck. III. The magnitude of the acceleration experienced... | high_school_physics | [
"I and II only",
"II only",
"III only",
"II and III only"
] | C |
A light bulb rated at 100 W is twice as bright as a bulb rated at 50 W when both are connected in parallel directly to a 100-V source. Now imagine that these bulbs are instead connected in series with each other. Which is brighter, and by how much? | high_school_physics | [
"The bulbs have the same brightness.",
"The 100-W bulb is twice as bright.",
"The 50-W bulb is twice as bright.",
"The 100-W bulb is four times as bright."
] | C |
You have a wire of length L, radius Q, and resistance Q. You need to obtain half that resistance using the same material and changing only one factor. You could | high_school_physics | [
"use half the length",
"use twice the length",
"use half the radius",
"use twice the radius"
] | A |
A swimmer is able to propel himself forward through the water by moving his arms. Which of the following correctly states the applicant and recipient of the force responsible for the swimmer’s forward acceleration? | high_school_physics | [
"The force of the surrounding water on the swimmer’s arms",
"The force of the swimmer’s arms on the swimmer’s torso",
"The force of the swimmer’s arms on the surrounding water",
"The force of the swimmer’s torso on the swimmer’s arms"
] | A |
A spherical balloon filled with helium is floating in air. If the balloon is inflated until its radius is doubled, how will the buoyant force on the balloon be affected? | high_school_physics | [
"It will decrease by a factor of 4.",
"It will increase by a factor of 4.",
"It will increase by a factor of 8.",
"It will not be affected."
] | C |
An object initially at rest experiences a time-varying acceleration given by a = (2 m/s^3)t for t ≥ 0. How far does the object travel in the first 3 seconds? | high_school_physics | [
"9 m",
"12 m",
"18 m",
"24 m"
] | A |
A pair of protective headphones reduces the sound of a jet engine from 140 dB to 110 dB. What percent of the noise is being blocked? | high_school_physics | [
"99.90%",
"78.60%",
"21.40%",
"0.10%"
] | A |
An equal number of hydrogen and carbon dioxide molecules are placed in a sealed container. The gases are initially at a temperature of 300 K when the container is placed in an oven and brought to a new equilibrium temperature of 600 K. Which of the following best describes what is happening to the molecular speeds and ... | high_school_physics | [
"The molecules of both gases, on average, end with the speed and the same average kinetic energy.",
"The molecules of hydrogen, on average, end with a higher speed, but the molecules of both gases end with the same average kinetic energy.",
"The molecules of hydrogen, on average, speed up more and end with a hi... | B |
A uniform bar is lying on a flat table. Besides the gravitational and normal forces (which cancel), the bar is acted upon by two other forces, F1 and F2, which are parallel to the surface of the table. If the net force on the rod is zero, then which one of the following is true? | high_school_physics | [
"The net torque on the bar must also be zero.",
"The bar can accelerate translationally if F1 and F2 are not applied at the same point.",
"The net torque will be zero if F1 and F2 are applied at the same point.",
"The bar cannot accelerate translationally or rotationally."
] | C |
An arrow is aimed horizontally, directly at the center of a target 20 m away. The arrow hits 0.050 m below the center of the target. Neglecting air resistance, what was the initial speed of the arrow? | high_school_physics | [
"20 m/s",
"40 m/s",
"100 m/s",
"200 m/s"
] | D |
If L, M, and T denote the dimensions of length, mass, and time, respectively, what are the dimensions of power? | high_school_physics | [
"(L^2)M/T^2",
"(M^2)L/T^2",
"(L^2)M/T^3",
"M(L^2)/T^3"
] | D |
A projectile is launched on level ground in a parabolic path so that its range would normally be 500 m. When the projectile is at the peak of its flight, the projectile breaks into two pieces of equal mass. One of these pieces falls straight down, with no further horizontal motion. How far away from the launch point do... | high_school_physics | [
"250 m",
"375 m",
"500 m",
"750 m"
] | D |
In the laboratory, a cart experiences a single horizontal force as it moves horizontally in a straight line. Of the following data collected about this experiment, which is sufficient to determine the work done on the cart by the horizontal force? | high_school_physics | [
"The magnitude of the force, the cart’s initial speed, and the cart’s final speed",
"The mass of the cart and the distance the cart moved",
"The mass of the cart, the cart’s initial speed, and the cart’s final speed",
"The mass of the cart and the magnitude of the force"
] | C |
It is observed that sounds can be heard around a corner but that light cannot be seen around a corner. What is a reasonable explanation for this observation? | high_school_physics | [
"Light travels at 3 × 10^8 m/s, which is too fast to change direction around a corner.",
"Sound has a longer wavelength, which increases the diffraction.",
"Light is an electromagnetic wave that is behaving as a particle.",
"Sound is a mechanical wave that can change direction in its propagation media."
] | B |
A spherical conductor carries a net charge. How is this charge distributed on the sphere? | high_school_physics | [
"The charge is evenly distributed on the surface.",
"The charge resides on the surface only; the distribution of charge on the surface depends on what other charged objects are near the sphere.",
"The charge moves continually within the sphere.",
"The charge is distributed uniformly throughout the sphere."
] | B |
A car travelling at a speed of v0 applies its brakes, skidding to a stop over a distance of x m. Assuming that the deceleration due to the brakes is constant, what would be the skidding distance of the same car if it were traveling with twice the initial speed? | high_school_physics | [
"2x m",
"3x m",
"4x m",
"8x m"
] | C |
Given that the Earth’s mass is m, its tangential speed as it revolves around the Sun is v, and the distance from the Sun to the Earth is R, which of the following correctly describes the work done by the centripetal force, Wc, in one year’s time? | high_school_physics | [
"Wc > 2R(mv^2/R)",
"Wc = 2R(mv^2/R)",
"Wc < 2R(mv^2/R)",
"Cannot be determined"
] | C |
Which of the following guidelines is applicable to initialization of the weight vector in a fully connected neural network. | machine_learning | [
"Should not set it to zero since otherwise it will cause overfitting",
"Should not set it to zero since otherwise (stochastic) gradient descent will explore a very small space",
"Should set it to zero since otherwise it causes a bias",
"Should set it to zero in order to preserve symmetry across all neurons"
] | B |
Which of the following statements about Naive Bayes is incorrect? | machine_learning | [
"Attributes are equally important.",
"Attributes are statistically dependent of one another given the class value.",
"Attributes are statistically independent of one another given the class value.",
"Attributes can be nominal or numeric"
] | B |
Statement 1| The L2 penalty in a ridge regression is equivalent to a Laplace prior on the weights. Statement 2| There is at least one set of 4 points in R^3 that can be shattered by the hypothesis set of all 2D planes in R^3. | machine_learning | [
"True, True",
"False, False",
"True, False",
"False, True"
] | D |
For the one-parameter model, mean-Square error (MSE) is defined as follows: 1/(2N) \sum (y_n − β_0)^2 . We have a half term in the front because, | machine_learning | [
"scaling MSE by half makes gradient descent converge faster.",
"presence of half makes it easy to do grid search. ",
"it does not matter whether half is there or not. ",
"none of the above"
] | C |
In Yann LeCun's cake, the cherry on top is | machine_learning | [
"reinforcement learning",
"self-supervised learning",
"unsupervised learning",
"supervised learning"
] | A |
What is the dimensionality of the null space of the following matrix? A = [[1, 1, 1], [1, 1, 1], [1, 1, 1]] | machine_learning | [
"0",
"1",
"2",
"3"
] | C |
The number of test examples needed to get statistically significant results should be _ | machine_learning | [
"Larger if the error rate is larger.",
"Larger if the error rate is smaller.",
"Smaller if the error rate is smaller.",
"It does not matter."
] | B |
Compared to the variance of the Maximum Likelihood Estimate (MLE), the variance of the Maximum A Posteriori (MAP) estimate is ________ | machine_learning | [
"higher",
"same",
"lower",
"it could be any of the above"
] | C |
Which of the following best describes the joint probability distribution P(X, Y, Z) for the given Bayes net. X <- Y -> Z? | machine_learning | [
"P(X, Y, Z) = P(Y) * P(X|Y) * P(Z|Y)",
"P(X, Y, Z) = P(X) * P(Y|X) * P(Z|Y)",
"P(X, Y, Z) = P(Z) * P(X|Z) * P(Y|Z)",
"P(X, Y, Z) = P(X) * P(Y) * P(Z)"
] | A |
You observe the following while fitting a linear regression to the data: As you increase the amount of training data, the test error decreases and the training error increases. The train error is quite low (almost what you expect it to), while the test error is much higher than the train error. What do you think is the... | machine_learning | [
"High variance",
"High model bias",
"High estimation bias",
"None of the above"
] | A |
Statement 1| If there exists a set of k instances that cannot be shattered by H, then VC(H) < k. Statement 2| If two hypothesis classes H1 and H2 satisfy H1 ⊆ H2, then VC(H1) ≤ VC(H2). | machine_learning | [
"True, True",
"False, False",
"True, False",
"False, True"
] | D |
The allele associated with sickle cell anemia apparently reached a high frequency in some human populations due to: | medical_genetics | [
"random mating",
"superior fitness of heterozygotes in areas where malaria was present",
"migration of individuals with the allele into other populations",
"a high mutation rate at that specific gene"
] | B |
RFLP analysis is a technique that | medical_genetics | [
"uses hybridization to detect specific DNA restriction fragments in genomic DNA",
"is used to determine whether a gene is transcribed in specific cells",
"measures the transfer frequency of genes during conjugation",
"is used to detect genetic variation at the protein level"
] | A |
Repeat core sequences consisting of 2, 3, or 4 base pairs are known as what? | medical_genetics | [
"Single nucleotide polymorphisms (SNPs)",
"Microsatellites",
"Minisatellites",
"Satellites"
] | B |
Marfan syndrome is caused by mutations in the gene which encodes _______. | medical_genetics | [
"Collagen",
"Dystrophin",
"Elastin",
"Fibrillin"
] | D |
If an autosomal recessive disorder which shows Hardy-Weinberg equilibrium has an incidence of 1 in 6400 then the frequency of carriers is approximately _______. | medical_genetics | [
"1 in 20",
"1 in 40",
"1 in 80",
"1 in 160"
] | B |
Tracing of a cell lineage during development means that | medical_genetics | [
"the cells giving rise to and derived from a specific cell are known",
"the sequence of the enhancers for developmental genes is known",
"the regulatory genes for the organism have been genetically mapped",
"cell components in the membrane involved in signaling have been isolated"
] | A |
Mutations which occur in body cells which do not go on to form gametes can be classified as: | medical_genetics | [
"auxotrophic mutations",
"somatic mutations",
"morphological mutations",
"oncogenes"
] | B |
Assuming that the level of glucose is low, a mutation in the repressor of the lac operon in E. coli, preventing binding of the repressor to the operator, should result in: | medical_genetics | [
"constitutive expression of the lac operon genes",
"lack of expression or reduced expression of the lac operon genes under all circumstances",
"expression of the genes only when lactose is present",
"expression of the genes only when lactose is absent"
] | A |
The “sticky ends” generated by restriction enzymes allow | medical_genetics | [
"selection for plasmids lacking antibiotic resistance",
"pieces of DNA from different sources to hybridize to each other and to be joined together",
"replication of transfer RNA within the bacterial cell",
"easy identification of plasmids which carry an insert"
] | B |
The presence of an extra digit is referred to as __________. | medical_genetics | [
"arachnodactyly",
"brachydactyly",
"clinodactyly",
"polydactyly"
] | D |
Which of the following statements about heritability are true? | medical_genetics | [
"is a measure of the level of heterozygotes in a population",
"is a measure of the proportion of variation that is due to genetic causes",
"is a measure of proportion of repeated DNA in an organism",
"is a measure of level of gene linkage"
] | B |
Which of the following statements about plasma lipoproteins is correct?
| nutrition | [
"They have a hydrophobic core of triacylglycerol and cholesterol esters",
"They have a hydrophobic core of phospholipids and free cholesterol",
"They have a hydrophilic core of triacylglycerol and cholesterol esters",
"They have a hydrophobic core of phospholipid and apolipoproteins"
] | A |
Which of the following statements is correct?
| nutrition | [
"Insulin suppresses the activity of glycogen synthase",
"Insulin mediates glucose uptake in the brain",
"\"Prediabetes\" is a condition characterized by an increased risk for the future development of type 2 diabetes",
"The rise in insulin concentration after meal ingestion is reduced in type 1 but not in typ... | C |
What mechanisms potentially accelerate age related cognitive decline (as of 2020 medical knowledge) | nutrition | [
"Glucose neurotoxicity",
"Insulin insensitivity",
"Systemic inflammation",
"All of the above"
] | D |
Which of the following are not true regarding macrobiotic and vegan diets?
| nutrition | [
"Low in fat",
"High in fibre",
"Low in sugar",
"Low energy density"
] | C |
On average, obese people have a higher basal metabolic rate (BMR) than lean people, mainly because the body of the obese has more
(in kg):
| nutrition | [
"adipose tissue (fat mass)",
"Lean mass (fat-free mass)",
"glycogen",
"water"
] | B |
Which of the following factors inhibits non-haem iron bioavailability the most?
| nutrition | [
"Phytic acid",
"Citric acid",
"Vegetable protein",
"Calcium"
] | A |
Which of the following vitamins is involved in transamination of amino acids?
| nutrition | [
"Niacin",
"Riboflavin",
"Thiamin",
"Vitamin B6"
] | D |
Which of the following is the most frequently used anthropometric measure to estimate body mass?
| nutrition | [
"Fat-free mass",
"Body fat",
"Body height",
"Body weight"
] | D |
What is the immediate source of chemical energy that can be used by skeletal muscle tissue to allow muscle contraction?
| nutrition | [
"glucose",
"ADP",
"ATP",
"AMP"
] | C |
What are the functions of dietary fat?
| nutrition | [
"Provide energy to the body",
"Form part of cellular membranes",
"Cell signalling",
"All options given are correct"
] | D |
Which of the following will result in an increase in the rate of tissue protein synthesis?
| nutrition | [
"Increased glucagon secretion in the fasting state.",
"Increased insulin secretion in the fed state.",
"Increased availability of lysine in the fed state.",
"Secretion of cortisol under conditions of stress."
] | B |
Which of the following mechanisms contributes to a decrease in plasma calcium concentration?
| nutrition | [
"The action of vitamin D on the intestine",
"The action of parathyroid hormone on the intestine",
"The action of parathyroid hormone on the kidney",
"The action of calcitonin on the kidney"
] | D |
From the options listed, which type of carbohydrate cannot be metabolised by oral bacteria
| nutrition | [
"maltose",
"malto-triose",
"starch",
"glucose"
] | C |
What are entitlements to food?
| nutrition | [
"The term refers to social welfare programmes, e.g. the Fair Price food shops in India.",
"It means the pathways through which people access food, whether by production, purchase, social protection programmes or other means.",
"When countries enact right-to-food legislation, then people are entitled to food.",
... | B |
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