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Consider the following statements:
(A) The portion of the spectrum between 500 nm and 800 nm is also referred to as photosynthetically active radiation (PAR).
(B) Magnesium, calcium and chloride ions play prominent roles in the photolysis of water
(C) In cyclic photophosphorylation, oxygen is not released (as there is no photolysis of water) and NADPH is also not produced.
Of these statements given above, choose the correct option from the following.
Options:
(A) The portion of the spectrum between 500 nm and 800 nm is also referred to as photosynthetically active radiation (PAR).
(B) Magnesium, calcium and chloride ions play prominent roles in the photolysis of water
(C) In cyclic photophosphorylation, oxygen is not released (as there is no photolysis of water) and NADPH is also not produced.
Of these statements given above, choose the correct option from the following.
Solution:
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Verified Answer
The correct answer is:
A and B are false but C is true
Cyclic photophosphorylation occurs when there is a scarcity of NADP+. When NADP+ is scarce then the electron is not transferred from A (Fes) complex to ferredoxin. A (Fes) complex transfer the electron to Cyt b6f complex and then via plastocyanin to P-700. Generation of ATP instead of NADPH takes place.
Magnesium and calcium do not play any role during photosynthesis. A major role is played by manganese and chloride ions.
The most optimum region for photosynthesis is 600-680 nm.
Magnesium and calcium do not play any role during photosynthesis. A major role is played by manganese and chloride ions.
The most optimum region for photosynthesis is 600-680 nm.
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