Non-cyclic photophosphorylation results in production of

Options

A. (a) `ADP`
B. (b) `ATP`
C. (c) `NADPH`
D. (d) `ATP` and `NADPH`.

Answer

**Step-by-Step Solution:**

1. **Understanding Non-Cyclic Photophosphorylation**:
Non-cyclic photophosphorylation is a process that occurs during photosynthesis, specifically in the light-dependent reactions. It involves both Photosystem I (PSI) and Photosystem II (PSII).

2. **Role of Photosystem II**:
- In PSII, light energy is absorbed, which excites electrons.
- Water molecules are split (photolysis) to provide electrons, releasing oxygen as a byproduct.
- The excited electrons are transferred through a series of electron carriers, leading to the pumping of protons (H+) into the thylakoid lumen.

3. **ATP Production**:
- The proton gradient created in the lumen drives ATP synthesis through ATP synthase, resulting in the production of ATP.

4. **Role of Photosystem I**:
- The electrons from PSII are transferred to PSI, where they are again excited by light energy.
- These high-energy electrons are then transferred to NADP+, reducing it to NADPH.

5. **Final Products**:
- The overall products of non-cyclic photophosphorylation are ATP and NADPH. Therefore, the correct answer to the question is that non-cyclic photophosphorylation results in the production of both ATP and NADPH.

**Final Answer**: Non-cyclic photophosphorylation results in the production of ATP and NADPH.

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