Light reaction of photosynthesis is also called

Options

A. Calvin cycle
B. Hill reaction
C. TCA cycle
D. All the above.

Answer

**Step-by-Step Solution:**

1. **Understanding Photosynthesis**: Photosynthesis consists of two main stages: light-dependent reactions and light-independent reactions (Calvin cycle).

2. **Identifying Light Reactions**: The light-dependent reactions occur in the thylakoid membranes of chloroplasts and require sunlight to take place.

3. **Discoverer of Light Reactions**: The light reactions were discovered by Robin Hill, which is why they are often referred to as the Hill reaction.

4. **Products of Light Reactions**: During the light reactions, sunlight is used to split water molecules (photolysis), resulting in the release of oxygen as a byproduct. The main products of these reactions are ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate), which are essential for the subsequent light-independent reactions (Calvin cycle).

5. **Conclusion**: Based on the information, the light reaction of photosynthesis is also called the Hill reaction.

**Final Answer**: The light reaction of photosynthesis is also called the Hill reaction.

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