MCAT Biochemistry Question 143: Answer and Explanation

Home > MCAT Test > MCAT biochemistry practice tests

Test Information

Use your browser's back button to return to your test results.
Do more MCAT biochemistry practice tests.

Question: 143

8. In which part of the cell is cytochrome c located?

A. Mitochondrial matrix
B. Outer mitochondrial membrane
C. Inner mitochondrial membrane
D. Cytosol

Correct Answer: C

Explanation:

Cytochrome c carries electrons from CoQH₂-cytochrome c oxidoreductase (Complex III) to cytochrome c oxidase (Complex IV) as part of the electron transport chain. The ETC takes place on the inner mitochondrial membrane.

Previous Next