Answer:
Option (C).
Explanation:
The cell requires specific signalling molecules for the proper functioning of the body. Different addition of chemical groups are important for the cells communication and metabolism of the body.
Phosphorylation may be defined as the addition of the phosphate group in the specific molecules. These phosphorylation are important for the cell growth, cell signalling and the cell metabolism of the body. Kinase enzyme transfer the phosphate group from one molecule to another.
Thus, the correct answer is option (D).
