Question

Enzymes for ETS occur in .................. of mitochondria.

• A. Matrix
• B. Outer wall
• C. Inner membrane
• D. Between inner & outer wall

Answer 1

Answer: (C)

Inner membrane

Mitochondria are cell organelles involved in aerobic respiration. Krebs cycle occurs in the mitochondrial matrix. Krebs cycle produces reduced coenzymes which are oxidized by electron carriers of Electron Transport System or ETS to produce ATP through oxidative phosphorylation. The electron carriers of ETS are located in the inner mitochondrial membrane in eukaryotes.