Question

Which of the following statements are correct?
(a) A portion of spectrum between 500-800 nm is PAR.
(b) Mg, Ca, CI have a prominent role in the photolysis of water.
(c) In cyclic photophosphorylation, O${}_2$ and NADPH are not produced.

• A. a true, b, c false
• B. b true, a, c false
• C. a, b true, c false
• D. a, b false, c true

Answer 1

Answer: (D)

a, b false, c true

A) PAR (Photosynthetically Active Region) is between 400-700 nm. So, 'a' is false.

B) ${Mn}^{+}$ and ${Cl}^{-}$ are responsible for the photolysis of water. So, 'b' is false.

C) $O_2$ and NADPH are not produced in cyclic photophosphorylation. They are produced in non-cyclic photophosphorylation. So, 'c' is true.
D) 'a' and 'b' are false while 'c' is true.
So the correct answer is 'a, b false, c true'.