AAMC FREE EXAM Questions With Detailed Complete Answers Graded A+.
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Course
FRFD
Institution
FRFD
Le Chatelier's Principle - correct answer States that if a stress is applied to a system at equilibrium, the system shifts in the direction that relieves the stress.
Bose-Einstein Principle - correct answer ...
Le Chatelier's Principle - correct answer States that if a stress is applied to a
system at equilibrium, the system shifts in the direction that relieves the stress.
Bose-Einstein Principle - correct answer states that a collection of atoms
cooled close to absolute zero will coalesce into a single quantum state
Heisenberg uncertainty principle - correct answer States that one cannot
known both the momentum and position of an object with absolute certainty
Pauli Exclusion Principle - correct answer States that two or more identical
fermions, e.g. electrons, cannot occupy the same quantum state
The reaction between NADH and ubiquinone is exergonic, but the reaction, when catalyzed by Na+-NQR,
does not generate much heat in vivo. What factor accounts for this difference? - correct answer
The movement of a charged particle against its concentration gradient is energetically costly. Coupling
the two processes: the redox reaction between NADH and ubiquinone and the movement of Na+ up a
concentration gradient makes the overall process less exothermic.
If all else is held constant, which of the following changes would NOT double the volume of a gas -
correct answer Based on Boyle's Law, P is inversely proportional to volume,
thus, doubling the pressure of a gas sample will decrease, not increase, the volume.
What is the molecular formula of the heterocyclic aromatic compound pyrrole? - correct answer
C4H5N
How many Liters are in 1 mol of gas? - correct answer 22.4 L
How does fluorescence occur? - correct answer Fluorescence can occur when
the absorbed radiation has a photon energy larger than the photon energy of the radiation emitted
through fluorescence.
, A major obstacle to obtaining useful energy from a nuclear fusion reactor is containment of the fuel at
the very high temperatures required for fusion. The reason such high temperatures are required is to: -
correct answer enable reactants to approach within range of the strong
nuclear force.
Enantiomers can exhibit a difference in which chemical or physical property - correct answer
Enantiomers have the same physical and chemical properties. They differ only in their three dimensional
arrangement of atoms and their interactions with other chiral molecules. They can differ in their smell
due to interacting differently with chiral odorant receptors.
Blood Flow Speed - correct answer V= Q/A
A= Pi*r^2
Which of the following species has an electron configuration equivalent to that of a noble gas
A. Ca2+
B. Cu2+
C.O
D.H - correct answer Ca2+ has lost its valence electrons and thus attains the
electronic configuration of the previous noble gas (Ar).
Copper has 11 outer electrons. Loss of 2 electrons.
positive cooperativity - correct answer the first substrate changes the shape of
the enzyme allowing other substrates to bind more easily
A 2 kg mass and a 5 kg mass are connected by a massless cord suspended over a massless and
frictionless pulley. If the acceleration due to gravity is g, what will be the acceleration of the masses after
they are released from rest? - correct answer According to Newton's second
law, the net force acting on the 5-kg mass is given by the expression Fnet= 5 kg × a1 = 5 kg × g - T, where
a1 is the acceleration after the release and T is the tension in the cord. The net force acting on the 2-kg
mass is given by the expression Fnet= 2 kg × a2 = 2 kg × g - T. Because the two masses move
simultaneously but in opposite directions after they are released, a1 = -a2 = a. Substituting the
expression T = 5 kg × (g - a) into the equation of motion of the 2-kg mass yields -2 kg × a = 2 kg × g - 5 kg
× (g - a) = -3 kg × g + 5 kg × a. Then 7 kg × a = 3 kg × g, hence a = 3g/7.
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