Question

Which of the following energy is utilised for the production of the proton gradient in ETS?

• A. Energy of Oxygen
• B. Energy of Hydrogen
• C. Energy of Phosphorous
• D. Energy of Oxidation-Reduction

Answer 1

Answer:

D. Energy of Oxidation-Reduction

• Unlike photophosphorylation, where it is the light energy that is utilised for the production of proton gradient required for phosphorylation, in respiration, it is the energy of the oxidation-reduction utilised for the same process.

• It is for this reason that the process is called Oxidative phosphorylation.