Unformatted text preview: 12) The mechanism in which the end product of a metabolic pathway inhibits an earlier step
in the pathway is known as a metabolic inhibition.
ﬁfeedback inhibition. c) allosteric inhibition. d) noncooperative inhibition. e) reversible inhibition. 13) Which of the following statements about enzymes is NOT correct?
a) Most enzymes are proteins
b) An enzyme is not consumed by the catalytic process.
c} An enzyme is very speciﬁc in terms of which substrate it binds to.
d) An enzyme lowers the activation energy of a chemical reaction.
(@l ‘ n enzyme catalyzes a reaction by lowering the AG of a reaction Use the following graphs to answer question 14 Rate of reaction —)- (a) Rate ofreaclion ——+ (h) PH—> 14) Which curve represents the optimum temperature for a typical human enzyme, and which
curve is most likely generated from analysis of an enzyme from a human stomach where nditions are strongly acid?
a L 4 34 15
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- Spring '07