NEETBiologyPhotosynthesis in Higher PlantsMCQ+4 / −1
Which one of the following concerns photophosphorylation?
- AADP + AMP ATP
- BADP + Inorganic PQ4 ATP
- CADP + Inorganic PQ4 ATP
- DAMP + Inorganic PQ4 ATP
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Correct answer: B
The light dependent production of ATP from
ADP + Pi in the chloroplasts is called photophosphorylation. Photophosphorylation is of 2 types –
Cyclic photophosphorylation – It involves only PS-I,
water is not utilised and so no oxygen is evolved. Here
two ATP molecules are produced.
Non-cyclic photophosphorylation – It involves both
PS-I and PS-II, water is utilised and so oxygen is
evolved. Here one ATP molecule and one NADPH2
molecule are produced.
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