Which of the following statements regarding enzyme regulation is true?
A) the conversion of trypsinogen to trypsin is an example of zymogen activation
B) allosteric effectors are always more powerful than covalent modification
C) addition of an inhibitor to a V system results in kinetics similar to addition of a competitive inhibitor to a typical hyperbolic system
D) the T state of an enzyme generally has more activity than the R state
E) none of the above

Question

Quizplus · Accepted Answer

The conversion of trypsinogen to trypsin is an example of zymogen activation, which is a type of enzyme regulation.

Answer: E
 None of the other statements regarding enzyme regulation are true. B is false because the strength of allosteric effectors and covalent modification can vary greatly depending on the specific enzyme and circumstances. C is false because the addition of an inhibitor to a V system would result in kinetics similar to noncompetitive inhibition, not competitive inhibition. D is false because the R state of an enzyme generally has more activity than the T state.

Which of the Following Statements Regarding Enzyme Regulation Is True