Biochemistry 1 Views 1 Answers
Which of the following statements about the electron transport chain is NOT correct A It is located in the inner mitochondrion membrane B Cytochrome c accepts electrons from complex I C Cytochrome oxidase (complex IV) accepts electrons from Cytochrome c D Coenzyme Q accepts electrons from complex I and complex II
Which of the following statements about the electron transport chain is NOT correct
A It is located in the inner mitochondrion membrane
B Cytochrome c accepts electrons from complex I
C Cytochrome oxidase (complex IV) accepts electrons from Cytochrome c
D Coenzyme Q accepts electrons from complex I and complex II
Answered
The correct answer is:
B. Cytochrome c accepts electrons from complex I
Explanation:
- Statement A (Correct): The electron transport chain (ETC) is located in the inner mitochondrial membrane.
- Statement B (Incorrect): Cytochrome c does not accept electrons from Complex I. Instead, it accepts electrons from Complex III and transfers them to Complex IV.
- Statement C (Correct): Cytochrome oxidase (Complex IV) accepts electrons from cytochrome c and passes them to oxygen, the final electron acceptor.
- Statement D (Correct): Coenzyme Q (ubiquinone) accepts electrons from both Complex I and Complex II and transfers them to Complex III.
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