Question
Biology Question on Photosynthesis in higher plants
Which one is involved in Z-scheme of photosynthesis?
A
PSI
B
PSII
C
e− carriers
D
All of these
Answer
All of these
Explanation
Solution
In non cyclic photophosphorylation, the whole scheme of transfer of electrons, starting from the PSII, uphill to the acceptor, down the electron transport chain to PSI, excitation of electrons, transfer to another acceptor, and finally down hill to NADP+ causing it to be reduced to NADPH+H+ is called as the Z scheme, due to its characteristic shape. This shape is formed when all the carriers are placed in a sequence on the redox potential scale.