Phytol chain is present in

Options

A. Carotenoids
B. Phycocyanin
C. Chlorophyll
D. Haemoglobin.

Answer

To solve the question "Phytol chain is present in," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Phytol**:
- Phytol is a long-chain alcohol that is a component of chlorophyll. It plays a crucial role in the structure of chlorophyll molecules.

2. **Analyzing the Options**:
- **Option A: Carotenoids**: These are pigments found in plants but do not contain a phytol chain.
- **Option B: Phycocyanin**: This is a pigment found in cyanobacteria and does not contain a phytol chain.
- **Option C: Chlorophyll**: This is the green pigment in plants that is essential for photosynthesis and contains a phytol chain.
- **Option D: Hemoglobin**: This is a protein in red blood cells that carries oxygen and does not contain a phytol chain.

3. **Identifying the Correct Answer**:
- Since phytol is specifically associated with chlorophyll, the correct answer is **Option C: Chlorophyll**.

4. **Conclusion**:
- The phytol chain is present in chlorophyll, which is vital for the process of photosynthesis in plants.

### Final Answer:
The phytol chain is present in **chlorophyll**.

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