Basic structure of all Chlorophylls comprises

Options

A. Cytochrome system
B. Flavoproteins
C. Porphyrin system
D. Plastocyanin

Answer

To answer the question regarding the basic structure of all chlorophylls, we can break down the information as follows:

### Step-by-Step Solution:

1. **Understanding Chlorophyll Structure**:
- Chlorophyll is a pigment found in plants that is crucial for photosynthesis. Its structure is essential for its function in capturing light energy.

2. **Identifying the Core Component**:
- The basic structure of all chlorophylls is characterized by a central atom. In the case of chlorophyll, this central atom is magnesium (Mg).

3. **Surrounding Elements**:
- The magnesium atom is surrounded by a nitrogen-containing structure. This arrangement forms what is known as a porphyrin ring.

4. **Defining the Porphyrin Ring**:
- The porphyrin ring is a complex organic structure that consists of a large cyclic arrangement of carbon and nitrogen atoms. This ring structure is crucial for the light-absorbing properties of chlorophyll.

5. **Additional Components**:
- In addition to the porphyrin ring, chlorophyll molecules have side chains or groups that can vary, leading to different types of chlorophyll (like chlorophyll A, B, etc.).
- Another important part of chlorophyll is the phytol tail, which is a long carbon-hydrogen chain that helps anchor the chlorophyll molecule in the thylakoid membranes of chloroplasts.

6. **Conclusion**:
- Therefore, the basic structure of all chlorophylls comprises the porphyrin ring, which is the correct answer to the question.

### Final Answer:
- The basic structure of all chlorophylls comprises the **porphyrin system**.