Question

Photosynthetic phosphorylation in vascular plants and oxidative phosphorylation in vertebrates appear to be generally similar processes, both consisting of ATP synthesis coupled to the transfer of electrons along an electron carrier chain. Which of the following is not true of both processes?

Question 2 options:

	Both function by generating a pH gradient across a lipid bilayer
	Both processes are associated with organelles
	Both use oxygen as a terminal electron acceptor
	Each represents a major route of ATP synthesis in those cells in which it is found
	Each contains a diffusible protein that carries electrons between membrane-bound complexes

Answer 1

phosphorylation :-

1. High energy electrons activate electron pumps which pump protons into the intermembrane space creating a proton gradient. Thus 1st option regarding both are true.

2. It is associated with chloroplast in plants and in animals it is mitochondria .

3. The P680 molecule removes election from oxygen evolving complex.thus O2 is released with 4 protons. So the given statement is wrong.

4.proton pumbs enable the synthesis of ATP.

5.cytochrome C acts as Mobile protein which help in the transport of electrons.