Final answer:
The control center of the cell is the nucleus, which manages the cell and houses its DNA. The nucleus is involved in essential functions like cell growth, replication, and protein synthesis.
Step-by-step explanation:
In the image of a cell, if 'letter C' is denoted as the control center of the cell, then it refers to the nucleus. The nucleus is an important organelle that not only manages the cell but also houses the cell's DNA which carries the blueprint for the entire organism. It is involved in functions like cell growth, cell replication, and protein synthesis.
Learn more about Cell Nucleus