Read the given statements and select the correct option.
Statement 1: During photophosphorylation (of photosynthesis), light energy is utilised for the production of a proton gradient during ATP synthesis.
Statement 2: In respiration, the energy of oxidation-reduction is utilised for the phosphorylation and thus the process is called oxidative phosphorylation.

Both statements 1 and 2 are correct.

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Statement 1 is correct but statement 2 is incorrect.

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Statement 1 is incorrect but statement 2 is correct.

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Both statements 1 and 2 are incorrect.

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Solution

The correct option is A Both statements 1 and 2 are correct.
Photophosphorylation occurs in the grana and requires the direct sunlight energy to make energy-carrier molecules that are used in the dark reaction. The light energy is trapped by chlorophyll to make ATP and NADPH. Oxidative phosphorylation is the synthesis of energy-rich ATP molecules with the help of energy liberated during oxidation of reduced co-enzymes (NADH, ${F A D H}_{2}$ ) produced in respiration.
So the correct answer is 'Both statements 1 and 2 are correct'.

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