Question

This event occurs during electron transport system and oxidative phosphorylation of mitochondria

• A. Succinate dehydrogenase transfers electrons to NADH dehydrogenase.
• B. FADH$_2$ donates directly to Cytochrome c reductase.
• C. Cytochrome c reductase donates electrons directly to ATP synthase for the synthesis of ATP.
• D. Oxygen acts as the final hydrogen acceptor.

Hint:

Always recall: Oxygen is the final acceptor in aerobic respiration during oxidative phosphorylation.

Answer 1

The Correct Option is D

In the electron transport system of mitochondria, oxygen serves as the terminal electron (hydrogen) acceptor, combining with protons and electrons to form water. This is essential for maintaining the flow of electrons.