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FL 5 AAMC MCAT 2024 QUESTIONS AND ANSWERS
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FL 5 AAMC MCAT 2024 QUESTIONS AND ANSWERS
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FL 5 AAMC MCATThe 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? - ANSWERS-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.
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? - ANSWERS-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
What is the chemical structure of a component found in four of the five cofactors
used by Na+-NQR? - ANSWERS-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
What is the ratio of cation to enzyme in the spectroelectrochemical experiments
described in the passage? - ANSWERS-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
Which of the following substances is polar? - ANSWERS-If there is a net dipole it is
polar
Question
If all else is held constant, which of the following changes would NOT double the
volume of a gas? - ANSWERS-pv=nrt
, What is the number of neutrons in the nucleus of the atom used to produce laser
radiations? - ANSWERS-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
What is the molecular formula of the heterocyclic aromatic compound pyrrole? -
ANSWERS-passage says its a tetra pyrrole so there are 4 carbons
The radiation of wavelength 605 nm CANNOT be used to produce the
fluorescence radiations depicted in Figure 3 because: - ANSWERS-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)
Approximately how many moles of Kr+ are contained in the laser tube at 0°C and
1 atm? - ANSWERS-Have to recognize STP conditions of 0 C and 1 atm (22.4 L)
Volume in PV=nrt is in L
1cm^3=1mL
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