The products of light reaction of photosynthesis is

Options

A. Carbohydrate
B. ATP
C. NADP and `O_(2)`
D. `NADPH_(2), ATP and O_(2)`

Answer

To answer the question about the products of the light reaction of photosynthesis, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Photosynthesis**:
- Photosynthesis is the process by which plants convert light energy into chemical energy, producing glucose and oxygen as byproducts.

2. **Phases of Photosynthesis**:
- Photosynthesis consists of two main phases: the light-dependent reactions (light reactions) and the light-independent reactions (dark reactions or Calvin cycle).

3. **Light-Dependent Reactions**:
- The light reactions occur in the thylakoid membranes of chloroplasts and require sunlight.
- During this phase, chlorophyll absorbs sunlight, which energizes electrons.

4. **Photolysis of Water**:
- The absorbed light energy is used to split water molecules (photolysis) into protons (H+), electrons (e-), and molecular oxygen (O2).
- This process releases O2 as a byproduct.

5. **Formation of Energy Carriers**:
- The energized electrons are transferred through a series of proteins in the thylakoid membrane, leading to the production of ATP (adenosine triphosphate) and NADPH (NADPH2).
- ATP serves as an energy carrier, while NADPH acts as a reducing agent.

6. **Products of Light Reactions**:
- The main products of the light-dependent reactions are:
- ATP
- NADPH (NADPH2)
- O2 (molecular oxygen)

7. **Conclusion**:
- Therefore, the correct answer to the question regarding the products of the light reaction of photosynthesis is NADPH2, ATP, and O2.

### Final Answer:
The products of the light reaction of photosynthesis are NADPH2, ATP, and O2.

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