Question

Which of the following is exclusively found in non-cyclic photophosphorylation? P700 NADP reductase PS-I ATP production​

Answer 1

Answer:

Z scheme of light reaction is noncyclic flow of an electron from PSII through quinone, cyt b

6

f complex and plastocyanin to NADPH via PSI;it includes both PSI and PSII. In cyclic photophosphorylation, electrons are passed from P700 of PS-I via electron transfer chain to back to P700 with the formation of ATP. It does not include PS II. Electrons are not passed to NADP reductase; no NADPH

2

is formed. Stroma lamellae lack PS II as well as NADP reductase enzyme while grana lamellae have both PS I and PS II. Thus, the correct answer is option B.