Light energy is converted into chemical energy through the formation of

Options

A. `NADPH_(2)`
B. `ATP`
C. `ATP` and `NADPH_(2)`
D. None of the above.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks how light energy is converted into chemical energy. This process occurs during photosynthesis, specifically in the light-dependent reactions.

2. **Identifying the Process**: In the light-dependent reactions of photosynthesis, chlorophyll absorbs sunlight. This energy is essential for the conversion of light energy into chemical energy.

3. **Role of Chlorophyll**: Chlorophyll, the green pigment in plants, captures solar energy. This energy is then used to initiate a series of reactions that lead to the formation of energy-rich molecules.

4. **Formation of Energy Molecules**: The light energy absorbed by chlorophyll is converted into chemical energy in the form of two key molecules:
- **ATP (Adenosine Triphosphate)**: This is known as the energy currency of the cell, providing energy for various cellular processes.
- **NADPH (Nicotinamide Adenine Dinucleotide Phosphate)**: This molecule acts as an electron carrier, storing energy in a form that can be used in the later stages of photosynthesis.

5. **Location of the Reaction**: These reactions occur in the thylakoid membranes of chloroplasts, where the chlorophyll is located. The thylakoids are organized into stacks known as granum.

6. **Conclusion**: Therefore, light energy is converted into chemical energy through the formation of both ATP and NADPH during the light-dependent reactions of photosynthesis.

**Final Answer**: Light energy is converted into chemical energy through the formation of ATP and NADPH.

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