Question

Which one is involved in Z-scheme of photosynthesis?

• A. PS I
• B. PS II
• C. $e^{-}carriers$
• D. All of the above
  

Answer 1

The correct option is D All of the above

This whole scheme of transfer of electrons, starting from the PS II, uphill to the acceptor, down the electron transport chain to PS I, excitation of electrons, transfer to another acceptor, and finally down hill to $NAD{P}^{+}$ 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.

So, the correct answer is 'All of the above'.