Exemplar Problems

Question:

What distinguishes Cyclic from Non-Cyclic Photophosphorylation?

Answer:

Cyclic Photophosphorylation involves only Photosystem I and is characterized by the recycling of electrons back to the photosystem. It produces ATP but not NADPH or oxygen. Non-Cyclic Photophosphorylation, on the other hand, involves both Photosystem I and II, produces ATP, NADPH, and oxygen, and utilizes electrons derived from the splitting of water.

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