Question

chromosomes control cell processes. they do this by
a providing energy for the cell to use.
b destroying foreign organisms that invade the cell.
c coding for the production of all a cell’s proteins.
d providing a site for the synthesis of the cell’s proteins.

Explanation:

• Option A: Energy for the cell is mainly provided by molecules like ATP, not chromosomes. So A is incorrect.
• Option B: Destroying foreign organisms is the role of immune - related cells or structures (like white blood cells, antibodies), not chromosomes. So B is incorrect.
• Option C: Chromosomes contain DNA, and DNA has the genetic code that is used to transcribe mRNA, which then translates to produce all the cell's proteins. This is the correct function of chromosomes in controlling cell processes.
• Option D: The site for protein synthesis is the ribosome, not the chromosome. So D is incorrect.

Answer:

C. coding for the production of all a cell’s proteins.