Question

In Aerobic Respiration, which of the following is(are) required for ATP production in the electron transport chain?

A: A Proton Gradient

B: Oxygen

C: The oxidation of the electron carrier molecules

D: Movement of electrons through proteins

E: All of the answer choices are correct.

Answer 1

Option E

Aerobic respiration is the process of breakdown Sugars in the presence of oxygen to yield ATP and water molecules.

During electron transport chain in aerobic respiration, electrons are transferred from one electron carrier to the other. All the electron Carriers of protein molecules. The electrons are donated by high energy electron carriers NADH and FADH₂. When the electrons are transferred from one electron carrier to the other, protons are also pumped from mitochondrial Matrix to intermembrane space. This leads to the generation of proton gradient across inner mitochondrial membrane. These protons are pumped back into the mitochondrial matrix through ATP synthase enzyme. This results in spinning of ATP synthase enzyme and therefore phosphorylation of ADP into ATP.

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