MMSC436 Exam 1 poll evs weeks 1-4 Questions & Answers (Grade A+).docx

MMSC436 Exam 1 poll evs weeks 1-4
Questions & Answers (Grade A+)
Which statement about enzymes is true?


A) An enzyme alters the Gibbs free energy of the reaction
B) Enzymes cause a reaction with a positive free energy to occur
spontaneously
C) An enzyme's natural substrate has the highest Km - lowest Km
D) An enzyme alters the Activation energy of the reaction -
correct answer ✅D) An enzyme alters the Activation energy of the
reaction


After a binge drinking party, the ethanol concentration in the liver
of an intoxicated student was equal to the Km for human liver
alcohol dehydrogenase. In this patient, which ONE of the followings
would be CORRECT?


A) V = Vmax
B) V = 2 x Vmax
C) V = Vmax/Km
D) V = Vmax/2
E) None of the above -
correct answer ✅D) V = Vmax/2

, MMSC436 Exam 1 poll evs weeks 1-4
Questions & Answers (Grade A+)

Enzymes are a subgroup of ______ that can be distinguished from
other members of the group by the enzyme's ______.


A) carbohydrates, catalytic activity
B) lipids, lipid solubility
C) proteins, catalytic activity
D) nucleic acids, lipid solubility -
correct answer ✅C) proteins, catalytic activity


When substrate concentration is much greater than KM, the rate of
catalysis is almost equal to


A) Kd
B) kcat
C) Vmax
D) All of the above
E) None of the above -
correct answer ✅B) kcat