Which statements provides correct information regarding prokaryotic and eukaryotic flagella :-

Options

A. The prokaryotic cell also possess flagella but these are structurally different from that of eukaryotic flagella.
B. Prokaryotic and eukaryotic both flagella are structurally similar
C. In case of both microtubule arrangement 9 +2.
D. In case of both flagella is made up of microtubule and flagellin protein.

Answer

To determine which statement provides correct information regarding prokaryotic and eukaryotic flagella, we need to analyze the characteristics of both types of cells and their flagella.

### Step-by-Step Solution:

1. **Understand Prokaryotic and Eukaryotic Cells**:
- Prokaryotic cells are primitive organisms that lack a true nucleus and nuclear membrane. Examples include bacteria.
- Eukaryotic cells have a defined nucleus with a nuclear membrane and organelles. Examples include plants, animals, and fungi.

2. **Define Flagella**:
- Flagella are tail-like structures that aid in the movement of cells. Both prokaryotic and eukaryotic cells can have flagella for locomotion.

3. **Analyze the Statements**:
- **Statement A**: "The prokaryotic cell also possesses flagella but these are structurally different from that of eukaryotic flagella."
- This statement is true. Prokaryotic flagella are made of a protein called flagellin, while eukaryotic flagella are made of tubulin and have a 9+2 microtubule arrangement.

- **Statement B**: "Prokaryotic and eukaryotic, both flagella are structurally similar."
- This statement is false. The structure of prokaryotic and eukaryotic flagella is different.

- **Statement C**: "In case of both, microtubule arrangement is 9 plus 2."
- This statement is false. The 9+2 arrangement of microtubules is only found in eukaryotic flagella.

- **Statement D**: "In case of both, flagella is made up of microtubule and flagellin protein."
- This statement is false. Prokaryotic flagella are made of flagellin, while eukaryotic flagella are made of tubulin.

4. **Conclusion**:
- The correct statement regarding prokaryotic and eukaryotic flagella is **Statement A**: "The prokaryotic cell also possesses flagella but these are structurally different from that of eukaryotic flagella."