The first acceptor of electrons from an excited chlorophyll molecule of photosystem II is

Options

A. cytochrome
B. iron-sulphur protein
C. ferredoxin
D. quinone

Explanation

To answer the question, "The first acceptor of electrons from an excited chlorophyll molecule of photosystem II is," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Photosystem II (PSII)**:
- Photosystem II is a crucial component of the photosynthetic process in higher plants. It is located in the thylakoid membranes of chloroplasts and is responsible for capturing light energy.

2. **Excitation of Chlorophyll**:
- When light is absorbed by chlorophyll molecules in PSII, it excites electrons, raising them to a higher energy level.

3. **Electron Transfer**:
- The excited electrons need to be transferred to a primary electron acceptor to continue the process of photosynthesis. This transfer is essential for the conversion of light energy into chemical energy.

4. **Identifying the First Acceptor**:
- The first acceptor of electrons from the excited chlorophyll molecule in PSII is a molecule known as **Plastoquinone (PQ)**. It plays a key role in the electron transport chain.

5. **Conclusion**:
- Therefore, the correct answer to the question is **Plastoquinone (PQ)**, which is the first acceptor of electrons from the excited chlorophyll molecule in Photosystem II.

### Final Answer:
The first acceptor of electrons from an excited chlorophyll molecule of photosystem II is **Plastoquinone (PQ)**.

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