Which is usually the slowest way to regulate a reaction in a metabolic pathway?
A)Allosteric modulation.
B)Covalent modification.
C)Changing the enzyme concentration.
D)All of the above are usually equally as fast.

Question

Quizplus · Accepted Answer

Changing the enzyme concentration is usually the slowest way to regulate a reaction in a metabolic pathway because it requires altering gene expression or protein synthesis, which takes time. Allosteric modulation and covalent modification can occur more rapidly and can quickly change enzyme activity. Therefore, option A and B are incorrect. Option D is incorrect because the choices are not usually equally fast in regulating a reaction in a metabolic pathway.

Which Is Usually the Slowest Way to Regulate a Reaction