Page | 1
FL 5 AAMC MCAT Questions with
Detailed Verified Answers
Question: What is the chemical structure of a component found in four of the
five cofactors used by Na+-NQR?
Ans: says it is composed of flavin
structure is a nucleotide base
structure B could be
structure C also could be
structure D is an amino acid
down between B and C
to help, look at the captioned note on the table. it says Fl represents flavin
which is the redox active center in four of the five cofactors of Na+-NQR
C has an uniquinone AND HERE IS IS MENTIONED THAT UNIQUINONE IS
IS A SUBSTATE
Question: What is the ratio of cation to enzyme in the spectroelectrochemical
experiments described in the passage?
, Page | 2
Ans: cation : enzyme
passage says Na+NQR was diluted to a final concentration of 0.75 mM in
0.150 molar of the cation ions
cation .15 M:
Question: 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?
Ans: Conservation of energy, it is not created nor destroyed but merely
changes forms
A. Is not possible, Even if it was heat generation would be larger for a
catalyzed rection.
C. is impossible, reactants have to be close together to react
The movement of a charged particle against its concentration gradient is
energetically costly.
Question: Two open flasks I and II contain different volumes of the same
liquid. Suppose that the pressure is measured at a point 10 cm below the
surface of the liquid in each container. How will the pressures compare?
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Ans: pressure=pgh
g=10
p= density (same liquid so same density)
h= 10 cm
both have same height so pressure will be the same-- if heights were
different pressure would be different
Question: Question
Which of the following substances is polar?
Ans: If there is a net dipole it is polar
Question: Question
If all else is held constant, which of the following changes would NOT double
the volume of a gas?
Ans: pv=nrt
Question: What is the number of neutrons in the nucleus of the atom used to
produce laser radiations?
, Page | 4
Ans: 86Kr+ laser
86= mass
Kr has proton number as 36
86-36=50
the cation or anion charge with any element is indicative of the charge aka
electron count
Question: What is the molecular formula of the heterocyclic aromatic
compound pyrrole?
Ans: passage says its a tetra pyrrole so there are 4 carbons
Question: The radiation of wavelength 605 nm CANNOT be used to produce
the fluorescence radiations depicted in Figure 3 because:
Ans: Maybe if you read the passage for once in your life and not get
confident then maybe you wouldn't have to take the exam for a third time
Not D because look at the passage
not C because of E=hc/lambda (high wavelength low energy)
Question: Approximately how many moles of Kr+ are contained in the laser
tube at 0°C and 1 atm?
FL 5 AAMC MCAT Questions with
Detailed Verified Answers
Question: What is the chemical structure of a component found in four of the
five cofactors used by Na+-NQR?
Ans: says it is composed of flavin
structure is a nucleotide base
structure B could be
structure C also could be
structure D is an amino acid
down between B and C
to help, look at the captioned note on the table. it says Fl represents flavin
which is the redox active center in four of the five cofactors of Na+-NQR
C has an uniquinone AND HERE IS IS MENTIONED THAT UNIQUINONE IS
IS A SUBSTATE
Question: What is the ratio of cation to enzyme in the spectroelectrochemical
experiments described in the passage?
, Page | 2
Ans: cation : enzyme
passage says Na+NQR was diluted to a final concentration of 0.75 mM in
0.150 molar of the cation ions
cation .15 M:
Question: 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?
Ans: Conservation of energy, it is not created nor destroyed but merely
changes forms
A. Is not possible, Even if it was heat generation would be larger for a
catalyzed rection.
C. is impossible, reactants have to be close together to react
The movement of a charged particle against its concentration gradient is
energetically costly.
Question: Two open flasks I and II contain different volumes of the same
liquid. Suppose that the pressure is measured at a point 10 cm below the
surface of the liquid in each container. How will the pressures compare?
, Page | 3
Ans: pressure=pgh
g=10
p= density (same liquid so same density)
h= 10 cm
both have same height so pressure will be the same-- if heights were
different pressure would be different
Question: Question
Which of the following substances is polar?
Ans: If there is a net dipole it is polar
Question: Question
If all else is held constant, which of the following changes would NOT double
the volume of a gas?
Ans: pv=nrt
Question: What is the number of neutrons in the nucleus of the atom used to
produce laser radiations?
, Page | 4
Ans: 86Kr+ laser
86= mass
Kr has proton number as 36
86-36=50
the cation or anion charge with any element is indicative of the charge aka
electron count
Question: What is the molecular formula of the heterocyclic aromatic
compound pyrrole?
Ans: passage says its a tetra pyrrole so there are 4 carbons
Question: The radiation of wavelength 605 nm CANNOT be used to produce
the fluorescence radiations depicted in Figure 3 because:
Ans: Maybe if you read the passage for once in your life and not get
confident then maybe you wouldn't have to take the exam for a third time
Not D because look at the passage
not C because of E=hc/lambda (high wavelength low energy)
Question: Approximately how many moles of Kr+ are contained in the laser
tube at 0°C and 1 atm?
