Question

1. what is the function of the rough endoplasmic reticulum?

a. synthesizing proteins due to the presence of ribosomes.
b. producing energy for the cell.
c. storing dna.
d. controlling cell division.

Explanation:

The rough endoplasmic reticulum (RER) has ribosomes attached to its surface. Ribosomes are the sites of protein synthesis. So, the RER is involved in synthesizing proteins.

• Option b: Producing energy for the cell is mainly the function of mitochondria (through processes like cellular respiration).
• Option c: Storing DNA is the function of the nucleus.
• Option d: Controlling cell division is related to structures like centrosomes and regulatory molecules in the cell cycle, not the RER.

Answer:

A. Synthesizing proteins due to the presence of ribosomes.