Light Reactions of Photosynthesis · NCERT Biology

In the thylakoid membrane, the CF1 part of the ATP synthase is located on:

  1. The side facing the lumen
  2. The side facing the stroma
  3. Embedded within the lipid bilayer
  4. The outer chloroplast membrane
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Correct answer: The side facing the stroma

The ATP synthase consists of a CF0 portion embedded in the membrane and a CF1 portion that protrudes into the stroma. The synthesis of ATP occurs on the CF1 headpiece facing the stroma.

Difficulty: Medium Question 14 of 20

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