Question: 133. Which of the following statements is incorrect?
(1) Both ATP and NADPH +\mathrm{H}^{+} are synthesized during non-cyclic photophosphorylation.
(2) Stroma lamellae have PS I only and lack NADP reductase.
(3) Grana lamellae have both PS I and PS II.
(4) Cyclic photophosphorylation involves both PS I and PS II.
Answer: Option (4)
Explanation:
In non-cyclic photophosphorylation, both ATP and NADPH +\mathrm{H}^{+} are produced along with the release of oxygen.
Stroma lamellae contain only Photosystem I and lack NADP reductase.
Grana lamellae possess both Photosystem I and Photosystem II.
Cyclic photophosphorylation involves only Photosystem I and does not involve Photosystem II.
Therefore, the statement that cyclic photophosphorylation involves both PS I and PS II is incorrect.