Question

Where are the cytochromes found?

• A. Lysosomes
• B. Mitochondrial matrix
• C. Outer wall of mitochondria
• D. Cristae of mitochondria

Answer 1

The correct option is D

Cristae of mitochondria

The correct option is D.

Explanation for correct options:

1. Cytochromes are present in the cristae of mitochondria.
2. They are described as respiratory pigments.

Explanation for incorrect options:

Option A:

1. Lysosomes are membrane-bound organelles that contain enzymes capable of breaking down biological polymers.

Option B:

1. The mitochondrial matrix comprises the deoxyribonucleic acid (DNA) of the mitochondrial genome and enzymes of Krebs' cycle.

Option C:

1. The outer wall of mitochondria comprises numerous integral membranes called porins.

Final answer: Cytochrome are found in the cristae of mitochondria.