Question Detail

BIO 101 Cell Structure and Function Objective Question

Question

The __________ contains circular DNA and 70S ribosomes.
Options
A thylakoid lumen
B intermembrane space
C stroma
Correct Answer
D granum
Correct Answer

Option C is the correct answer.

Detailed Explanation

The stroma is the fluid-filled space inside the chloroplast envelope (outside the thylakoids). It contains chloroplast DNA, 70S ribosomes, and enzymes for the Calvin cycle.

Hint

The equivalent of the mitochondrial matrix in chloroplasts.

Question Info