What are two ways to regulate (control) an enzyme?

Question

ACTIVE + INACTIVE inhibition.

Answer 1

? Could you be more specific?

Two basic ways that a cell regulates its enzymes are through:

1.Binding of a small molecule that acts as an activator or inhibitor

2.Reversible covalent modification of the enzyme at certain residues e.g. phosphorylation, acetylation, methylation etc.

Answer 2

U Pick 2:

Substrate concentration, environment/buffer conditions, activation (cofactors, positive feedback) and inhibition (competitive, feedback, allosteric).

Answer 3

Temperature
ph