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ExamsNEETBiology

ETC of photosynthesis process is

  1. Bound to thylakoid membrane
  2. Present in stroma
  3. Bound to outer chloroplast membrane
  4. Dispersed in cytosol

Correct answer: Bound to thylakoid membrane

Solution

The photosynthetic electron transport chain is embedded in the thylakoid membrane, where it can pass electrons between photosystems and pump protons to build the gradient needed for ATP synthesis. The stroma contains Calvin cycle enzymes, not the ETC.

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