Electric charge separations or quantum conversion occurs at

Options

A. Antenna molecules
B. Thylakoid membrane
C. Reaction centre
D. Stroma

Answer

To answer the question "Electric charge separations or quantum conversion occurs at," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Process**:
- Electric charge separation or quantum conversion is a fundamental process in photosynthesis. This process involves the conversion of light energy into chemical energy.

2. **Identifying the Location**:
- In plants, this process occurs specifically at the **photosynthetic reaction center**. This is where the primary photochemical reactions take place.

3. **Role of Chlorophyll**:
- Chlorophyll, the green pigment in plants, plays a crucial role in this process. It absorbs light energy from sunlight.

4. **Electron Promotion**:
- When chlorophyll absorbs light, it causes electrons to be promoted from a higher energy state (highest occupied molecular orbital) to a lower energy state (lowest unoccupied molecular orbital). This movement of electrons is what we refer to as electric charge separation.

5. **Conclusion**:
- Therefore, the correct answer to the question is that electric charge separation or quantum conversion occurs at the **photosynthetic reaction center**.

### Final Answer:
Electric charge separations or quantum conversion occurs at the **photosynthetic reaction center**.

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