Question

Identify the correct statement(s) in relation to photosynthesis.
(a) First $C{O}_2$ acceptor in $C_4$ cycle is PGA.
(b) In $C_3$ plants, the first stable product of photosynthesis in RuBP.
(c) Cyclic photophosphorylation results in the formation of ATP.
(d) Oxygen liberated during photosynthesis comes from water.

• A. a and b alone are correct
• B. a and c alone are correct
• C. c and d alone are correct
• D. b and c alone are correct

Answer 1

The correct option is C c and d alone are correct

A) 'a' is incorrect as the first ${CO}_2$ acceptor in $C_4$ cycle is PEPcase. 'b' is incorrect as the first stable product of

photosynthesis in $C_3$ plants is PGA.

B) 'a' is incorrect as the first ${CO}_2$ acceptor in $C_4$ cycle is PEPcase. 'c' is correct as cyclic photophosphorylation results in the formation of the only ATP.

C) 'c' is correct as cyclic photophosphorylation results in the formation of the only ATP. 'd' is correct as oxygen is evolved from the photolysis of water.

D) 'b' is incorrect as the first stable product of photosynthesis in $C_3$ plants is PGA. 'c' is correct as cyclic photophosphorylation results in the formation of the only ATP.

So the correct answer is 'c and d alone are correct'.