Final electron acceptor in respiratory chain is:
Correct answer: B. Oxygen
- A. Cytochrome A
- B. Oxygen
- C. Cytochrome a3
- D. Cytochrome C
Explanation
The final acceptor of electrons in the respiratory chain is oxygen (O2). During oxidative phosphorylation, which is the last stage of cellular respiration, electrons are transferred through a series of protein complexes in the inner mitochondrial membrane (or the plasma membrane in prokaryotes). This process is part of the electron transport chain.
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