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AAMC MCAT Practice Exam 1 Questions and Answers (Latest 2024) Verified Answers
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AAMC MCAT Practice Exam 1 Questionsand Answers (Latest 2024) Verified
Answers
In the chromatography of the reaction mixture, water
absorbed on cellulose functioned as the stationary phase.
What was the principal factor determining the migration of
individual components in the sample?
A) Hydrogen bonding
B) Solute concentration
C) Stationary phase concentration
D) Thickness of paper - Correct Answer ✅A) Hydrogen
bonding
The answer to this question is A because the relative amount
of hydrogen bonding to the stationary phase will determine
the relative rate of migration of the various components in
the sample.
What assumption is being made if scientists conclude that
aspartic acid was formed by the prebiological synthesis in the
passage?
,AAMC MCAT Practice Exam 1 Questions
and Answers (Latest 2024) Verified
Answers
A) Aspartic acid is unstable at temperatures below 150
degrees C.
B) All of the malic acid underwent the dehydration reaction to
form fumaric/maleic acid.
C) Compound A and cyanide were available on primitive
Earth.
D) The reaction between ammonia and fumaric acid was
catalyzed by the presence of water. - Correct Answer ✅C)
Compound A and cyanide were available on primitive Earth.
he answer to this question is C since, in order for the
experimental reaction sequence to be relevant to the
primordial formation of aspartic acid, the starting materials
used (Compound A and cyanide) are assumed to have been
available.
According to the developed chromatography plate shown
below, what is the approximate Rf value of aspartic acid?
aspartic acid = 2
,AAMC MCAT Practice Exam 1 Questions
and Answers (Latest 2024) Verified
Answers
solvent front = 10
A) 0.20
B) 0.50
C) 5
D) 10 - Correct Answer ✅The answer to this question is A
(0.20) because Rf is the ratio of the distance travelled by the
analyte relative to the solvent front during a chromatographic
separation. Aspartic acid travelled two units, while the
solvent front travelled ten units, giving an Rf of 2/10 = 0.20
for aspartic acid.
Which of the following statements does NOT correctly
describe the dehydration of malic acid to fumaric acid and
maleic acid?
A) The reaction occurs most readily with tertiary alcohols.
B) The reaction involves the loss of a water molecule.
C) The reaction has a carbocation intermediate.
, AAMC MCAT Practice Exam 1 Questions
and Answers (Latest 2024) Verified
Answers
D) The reaction is stereospecific. - Correct Answer ✅D) The
reaction is stereospecific.
The answer to this question is D because the fact that both
fumaric and maleic acid are produced means that the
dehydration of malic acid is NOT stereospecific.
What type of functional group is formed when aspartic acid
reacts with another amino acid to form a peptide bond?
A) An amine group
B) An aldehyde group
C) An amide group
D) A carboxyl group - Correct Answer ✅C) An amide group
The answer to this question is C because the functional group
that forms during peptide bond formation is known as an
amide group.
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