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MCAT Practice Questions
STUVIA EXAM
Why is the α-anomer of d-glucose less likely to form than the β-anomer?
A. The β-anomer is preferred for metabolism.
, B. The β-anomer undergoes less electron repulsion.
C. The α-anomer is the more stable anomer.
D. The α-anomer forms more in L-glucose. - ANSWEWR-B. The β-anomer undergoes less electron
repulsion.
Many double-displacement reactions are enzyme-catalyzed via the "ping pong" mechanism, so called
because the reactants appear to bounce off the enzyme like a ping pong ball. These reactions typically
have two reactants and two products. In a third-order reaction involving two reactants and two
products, doubling the concentration of the first reactant causes the rate to increase by a factor of 2.
What will happen to the rate of this reaction if the concentration of the second reactant is cut in half?
A. It will increase by a factor of 2.
B. It will increase by a factor of 4.
C. It will decrease by a factor of 2.
D. It will decrease by a factor of 4. - ANSWEWR-D. It will decrease by a factor of 4.
Becoming a college graduate requires hard work and diligence in academics. As such, being a college
graduate could be considered a(n):
A. ascribed status
B. achieved status
C. master status
D. pigeonholed status - ANSWEWR-B. achieved status
A stroke patient comprehends speech but cannot move her mouth to form words. Which of the
following brain areas is likely affected?
A. Broca's area
B. Wernicke's area
C. arcuate fasciculus
D. superior temporal gyrus - ANSWEWR-A. Broca's area