Bond found in between phytol tail and porphyrin head is

Options

A. Ester
B. Hydrogen
C. Glycosidic
D. Phosphodiester

Answer

To determine the bond found between the phytol tail and the porphyrin head in chlorophyll, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of Chlorophyll**:
- Chlorophyll consists of two main parts: the porphyrin head and the phytol tail. The porphyrin head contains a central magnesium atom surrounded by nitrogen atoms, while the phytol tail is composed of carbon and hydrogen.

2. **Identify the Components**:
- The porphyrin head is often referred to as the porphyrin ring, which is crucial for the chlorophyll's ability to absorb light.
- The phytol tail is a long hydrocarbon chain that helps anchor the chlorophyll molecule in the thylakoid membrane of chloroplasts.

3. **Determine the Type of Bond**:
- The bond that connects the porphyrin head (the porphyrin ring) to the phytol tail is essential for the structural integrity of the chlorophyll molecule.
- The options given for the type of bond are:
A) Ester
B) Hydrogen
C) Glycosidic
D) Phosphodiester

4. **Analyze the Options**:
- **Ester Bond**: This type of bond is formed between an alcohol and an acid, typically linking a fatty acid to a glycerol or in this case, linking the phytol tail to the porphyrin head.
- **Hydrogen Bond**: This is a weak bond and is not suitable for linking the two components in a stable manner.
- **Glycosidic Bond**: This bond is specific to carbohydrates and is not applicable here.
- **Phosphodiester Bond**: This bond is found in nucleic acids and is not relevant to chlorophyll.

5. **Conclusion**:
- The bond that connects the phytol tail to the porphyrin head in chlorophyll is an **ester bond**. Therefore, the correct answer is **A) Ester**.

### Final Answer:
The bond found between the phytol tail and the porphyrin head is an **ester bond**.

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