How does phosphorylation by kinases control protein activity

How does phosphorylation by kinases control protein activity?

The transfer of a phosphate group provides chemical energy to drive unfavorable reactions.

The addition of a phosphate group adds energy to a protein.

The addition of a phosphate group can induce major conformational changes in a protein.

The phosphate group, with its two negative charges, prevents other negatively charged molecules from interacting with the protein.

Solution

The correct answer is:c)The addition of a phosphate group can induce major conformational changes in a protein.

Reason:Kinases phosphorylate the proteins on target aminoacid residues which bring about conformational changes in the proteins that then carry forward the signalling process.