Question

The process of oxidative phosphorylation takes place in the

• A. Mitochondria.
• B. Chloroplasts.
• C. Ribosomes.
• D. Cytoplasm.

Answer 1

The correct option is A Mitochondria.

Phosphorylation means synthesis of ATP by addition of phosphorous to ADP through a high energy acid anhydride bond. Oxidative phosphorylation occurs in mitochondria by oxidation of reduced coenzymes, like $NAD{H}_2$ and $FAD{H}_2$. During mitochondrial Krebs cycle reduced coenzymes are synthesized.