Which products of Hill reaction are used in Blackman's reaction

Options

A. ATP,NADPH
B. ATP, NADH
C. ADP, NAD
D. ATP, NAD

Answer

**Step-by-Step Solution:**

1. **Understanding the Hill Reaction**: The Hill reaction, also known as the light reaction or light-dependent reaction, occurs during photosynthesis. It utilizes light energy to drive the process.

2. **Process of Photosynthesis**: Photosynthesis consists of two main stages: the light reaction (Hill reaction) and the dark reaction (Blackman's reaction). The light reaction captures light energy and converts it into chemical energy.

3. **Photolysis of Water**: In the Hill reaction, water molecules are split (photolysis) to produce hydrogen and oxygen. This process is essential for providing the electrons needed for the photosystems.

4. **Formation of Energy Molecules**: During the Hill reaction, two key energy molecules are produced:
- **ATP (Adenosine Triphosphate)**: Formed through photophosphorylation, where ADP (Adenosine Diphosphate) is converted into ATP.
- **NADPH (Nicotinamide Adenine Dinucleotide Phosphate)**: Formed during the operation of Photosystem I.

5. **Transition to Blackman's Reaction**: The ATP and NADPH produced in the Hill reaction are then utilized in the dark reaction, also known as Blackman's reaction. This reaction does not require light and involves the fixation of carbon dioxide.

6. **Key Steps in Blackman's Reaction**: The dark reaction includes:
- Carbon dioxide fixation
- Reduction phase
- Regeneration of ribulose bisphosphate (RuBP)
- Ultimately leading to the synthesis of glucose.

7. **Conclusion**: The products of the Hill reaction that are used in Blackman's reaction are **ATP** and **NADPH**.

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