Q6. What is the main function of NADP+ in photosynthesis?
- A. Captures light energy
- B. Acts as the final electron acceptor in the light reactions
- C. Fixes carbon dioxide in the Calvin cycle
- D. Synthesizes ATP
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Which of the following is a product of the Calvin cycle?
NADPH
Oxygen
G3P (Glyceraldehyde-3-phosphate)
Water
What is the role of ATP and NADPH in the Calvin cycle?
ATP provides energy, and NADPH provides reducing power
Both are used for carbon fixation
Both help in the release of oxygen
ATP reduces NADP⁺
Which of the following statements about CAM plants is true?
They fix CO₂ at night and perform the Calvin cycle during the day
They lack RuBisCO
They have the same photosynthetic pathway as C₄ plants
They perform photosynthesis only in mesophyll cells
What is the role of PEP carboxylase in C₄ plants?
Fixes CO₂ in mesophyll cells
Reduces NADP⁺
Synthesizes ATP
Breaks down malate
Which of the following is an incorrect statement about the Calvin cycle?
It takes place in the stroma.
RuBP captures carbon dioxide.
It produces glucose directly.
ATP and NADPH are required for the cycle.
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