Question

ATP formation during photosynthesis occurs during

• A. Photoionization
• B. Cyclic and non cyclic photophosphorylation
• C. Oxidative phosphorylation
• D. None of the above

Answer 1

The correct option is B Cyclic and non cyclic photophosphorylation

During photosynthesis, the phosphorylation of ADP to form ATP using the energy of sunlight is called photophosphorylation. ATP formation can occur via cyclic and noncyclic photophosphorylation pathway.
Photoionization is the physical process in which an ion is formed from the interaction of a photon with an atom or molecule. Photolysis is a good example for a photoionization reaction.
Oxidative phosphorylation is a process by which cells use enzymes to oxidize nutrients and release energy in the form of ATP.