Question

(i) Name the products produced from Non – Cyclic photophosphorylation? 

(ii) Why does PS II require electrons from water? 

(iii) Can you find the difference in the Pathway of electrons during PS I and PS II?

Answer 1

(i) The products of non-cyclic phosphorylation are NADPH + H⁺ and ATP.

(ii) The electrons received from water are responsible for the production of ATP and NADPH + H⁺ through electron transport system in PS I and PS II.

(iii) Yes. Electron flow starts from P680 through a series of electron carrier molecules and finally reaches P700 (PSI). From PS I the electrons travels downhill through ferredoxin, NADP⁺ is recorded to NADPH + H⁺