Besides turning enzymes on or off, what other means does a cell use to

control enzymatic activity?

A) compartmentalization of enzymes into defined organelles

B) exporting enzymes out of the cell

C) connecting enzymes into large aggregates

D) hydrophobic interactions

E) cessation of all enzyme formation

Option A and option C are both plausible answers, although option A is phrased to be the more likely answer, if there is only one answer to this question.

Explanation:

Compartmentalisation of enzymes can be observed in fatty acids synthesis vs fatty acid metabolism in the liver. Similarly, enzymes are often connected together in a larger protein structure to allow simultaneous control of all the enzymes such as in fatty acid synthesis in liver cells, where enzymes are all part of fatty acid synthase.