Question

which statement explains how a cell part helps a cell get nutrients?
a. a transport protein helps waste molecules leave the cell.
b. the nucleus provides the instructions for making proteins from amino acids.
c. the contractile vacuole squirts excess water out of the cell.
d. a food vacuole merges with a lysosome.

Explanation:

• Option A: Transport proteins help waste exit, not get nutrients. Eliminate A.
• Option B: The nucleus gives protein - making instructions, not nutrient acquisition. Eliminate B.
• Option C: Contractile vacuoles remove excess water, not get nutrients. Eliminate C.
• Option D: A food vacuole merging with a lysosome allows lysosomal enzymes to break down food in the vacuole, releasing nutrients for the cell to use. This explains how a cell part (food vacuole and lysosome) helps the cell get nutrients.

Answer:

D. A food vacuole merges with a lysosome.