Photooxidation of water in photosynthesis is in association of :

Options

A. Cytochrome `b_(6)`
B. Pigment system - I
C. Pigment system - II
D. Plastocyanin

Answer

**Step-by-Step Solution:**

1. **Understanding Photooxidation of Water**:
- Photooxidation of water is a process that occurs during photosynthesis where water molecules are split into oxygen, protons, and electrons. This process is crucial for the production of oxygen and for providing electrons that are necessary for the photosynthetic electron transport chain.

2. **Identifying the Role of Pigment Systems**:
- In photosynthesis, particularly in the light-dependent reactions, there are two main pigment systems: Photosystem II (PSII) and Photosystem I (PSI).
- PSII is responsible for the initial step of capturing light energy and using it to split water molecules.

3. **Linking Photooxidation to Pigment Systems**:
- The electrons released from the photooxidation of water are used to replace the electrons lost by the chlorophyll in Photosystem II. This means that the process of photooxidation is directly associated with Photosystem II.

4. **Conclusion**:
- Therefore, the correct answer to the question "Photooxidation of water in photosynthesis is in association with:" is **Photosystem II**.

**Final Answer**: Photooxidation of water in photosynthesis is in association with **Photosystem II**.

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