FL 5 AAMC MCAT COMPLETE LATEST
STUDY SET WITH QUESTIONS AND
ANSWERS THAT ARE SIMPLIFIED AND
CORRECT
What is the chemical structure of a component found in four of the five cofactors used by Na+-NQR? -
correct answer-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? - correct answer-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:
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-
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? - correct answer-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
Which of the following substances is polar? - correct answer-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? -
correct answer-pv=nrt
What is the number of neutrons in the nucleus of the atom used to produce laser radiations? - correct
answer-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? - correct answer-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: - correct answer-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? - correct
answer-Have to recognize STP conditions of 0 C and 1 atm (22.4 L)
Volume in PV=nrt is in L
1cm^3=1mL
The CD spectroscopy signal that was used to generate the data in Figure 1 arises from the chirality of the:
- correct answer-look for what is chiral
B is not
C is not
D- most beta carbons are not chiral
STUDY SET WITH QUESTIONS AND
ANSWERS THAT ARE SIMPLIFIED AND
CORRECT
What is the chemical structure of a component found in four of the five cofactors used by Na+-NQR? -
correct answer-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? - correct answer-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:
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-
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? - correct answer-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
Which of the following substances is polar? - correct answer-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? -
correct answer-pv=nrt
What is the number of neutrons in the nucleus of the atom used to produce laser radiations? - correct
answer-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? - correct answer-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: - correct answer-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? - correct
answer-Have to recognize STP conditions of 0 C and 1 atm (22.4 L)
Volume in PV=nrt is in L
1cm^3=1mL
The CD spectroscopy signal that was used to generate the data in Figure 1 arises from the chirality of the:
- correct answer-look for what is chiral
B is not
C is not
D- most beta carbons are not chiral
