Question:

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R

Assertion (A) : 02 is liberated in the non-cyclic photophosphorylation.

Reason (R) : Liberation of oxygen is due to photolysis of water.

In the light of the above statements, choose the correct answer from the options given below

Updated On: Aug 4, 2024
  • If both assertion and reason are true and reason is the correct explanation of assertion
  • If both assertion and reason are true but reason is not the correct explanation of assertion
  • If assertion is true but reason is false
  • If both assertion and reason are false
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The Correct Option is B

Solution and Explanation

Answer (b) If both assertion and reason are true but reason is not the correct explanation of assertion

Assertion (A) : 02 is liberated in the non-cyclic photophosphorylation. (correct)

Reason (R) : Liberation of oxygen is due to photolysis of water. (True but not correct explanation)

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Concepts Used:

Photosynthesis in Higher Plants

Processes Of Photosynthesis in Higher Plants:

Photosynthesis in higher plants involves the following processes:

  • Light Reaction
  • Dark Reaction

Light Reaction:

  • This phenomenon occurs in the presence of light.
  • The pigment absorbs light and produces energy in the form of ATP.
  • The process involves- absorption of light, water splitting, the release of oxygen, and formation of ATP and NADPH.

Dark Reaction:

This process occurs in the absence of light in the stroma of the chloroplasts. The following cycles are involved in the process:

  1. Calvin Cycle (C3 Cycle)
  2. C4 Cycle (Hatch and Slack Pathway)