Mark out the incrorect statement

Options

A. PS II is found in both grana and stroma lamellae
B. PS II is involved in photolysis of water
C. PS II participates in both cyclic as well as non-cyclic flow of electrons
D. The reaction centre in PS II is ` P_(680)`

Answer

To determine the incorrect statement regarding Photosystem II (PS2) in the context of photosynthesis in higher plants, we will analyze each statement provided in the question.

### Step-by-Step Solution:

1. **Statement Analysis**:
- **Statement 1**: "Photosystem II is formed in both grana and stroma lamellae."
- **Statement 2**: "Photosystem II is involved in photolysis of water."
- **Statement 3**: "Photosystem II participates in both cyclic as well as non-cyclic flow of electrons."
- **Statement 4**: "The reaction center in photosystem II is P680."

2. **Evaluating Each Statement**:
- **Statement 1**: This statement is incorrect. Photosystem II is primarily located in the thylakoid membranes, specifically on the inner surface of the thylakoid membrane, and is not formed in both grana and stroma lamellae.
- **Statement 2**: This statement is correct. Photosystem II is indeed involved in the photolysis of water, which occurs in the lumen of the thylakoid.
- **Statement 3**: This statement is correct. Photosystem II participates in both cyclic and non-cyclic electron flow.
- **Statement 4**: This statement is correct. The reaction center of Photosystem II is designated as P680.

3. **Conclusion**:
- The incorrect statement is **Statement 1**: "Photosystem II is formed in both grana and stroma lamellae."

### Final Answer:
The incorrect statement is: **"Photosystem II is formed in both grana and stroma lamellae."**

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