Question:

Consider the following statements regarding photosynthesis (a) ATP formation during photosynthesis is termed as photophosphorylation (b) Kranz anatomy pertains to leaf (c) Reduction of NADP to NADPH occurs during Calvin cycle (d) In a chlorophyll molecule magnesium is present in phytol tail. Of the above statements

Updated On: Jun 6, 2022
  • (a) and (b) are correct
  • (c) and (d) are correct
  • (a) and (c) are correct
  • (a) and (d) are correct
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The Correct Option is A

Solution and Explanation

Reduction of $NADP^{+}$ to $NADPH$ occurs during non-cyclic Photophosphorylation of light reaction, while oxidation of NADPH takes place during Calvin cycle.
Tetraporphyrin ring of chlorophyll a flat, square, structure of alternating single and double bonds containing four smaller pyrrole rings with a magnesium atom at the centre.
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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)