Question

Which one occurs both during cyclic and non-cyclic modes of photophosphorylation ?

(a) lnvolvement of both PS-I and PS-II 

(b) Formation of ATP 

(c) Release of O₂ 

(d) Formation of NADPH

Answer 1

Correct option (b) Formation of ATP 

Explanation :

Cyclic photophosphorylation is that type of light energised ATP synthesis in which  electron expelled by excited photocentre does not return to them. It involves two photochemical Systems(PS-I and PS-II) and produces assimilatory power(ATP and NADPH).

In both, cyclic and non-cyclic photophosphorylation, formation of ATP takes place.