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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, O2 and NADPH are not produced.

A
a true, b, c false
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B
b true, a, c false
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C
a, b true, c false
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D
a, b false, c true
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Solution

The correct option is C 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) O2 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'.

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