Similar characater between prokaryotic cells and eukaryotic cells is

Options

A. Cell wall composition
B. Presence of slime layer
C. Composition of plasma membrane
D. Nature of nucleus

Answer

To determine the similar character between prokaryotic and eukaryotic cells from the given options, we can analyze each option step by step:

### Step-by-Step Solution:

1. **Understanding Prokaryotic and Eukaryotic Cells**:
- Prokaryotic cells are simple, unicellular organisms without a nucleus or membrane-bound organelles (e.g., bacteria).
- Eukaryotic cells are more complex, can be unicellular or multicellular, and have a true nucleus and membrane-bound organelles (e.g., plant and animal cells).

2. **Option 1: Cell Wall Composition**:
- Prokaryotic cells (like bacteria) have cell walls made of peptidoglycan.
- Eukaryotic cells (like plants and fungi) have cell walls made of cellulose (in plants) or chitin (in fungi).
- **Conclusion**: The cell wall composition is different between prokaryotic and eukaryotic cells.

3. **Option 2: Presence of Slime Layer**:
- Prokaryotic cells often have a slime layer or glycocalyx that helps in adhesion.
- Eukaryotic cells typically do not have a slime layer.
- **Conclusion**: The presence of a slime layer is not a similarity.

4. **Option 3: Composition of Plasma Membrane**:
- Both prokaryotic and eukaryotic cells have a plasma membrane.
- The composition includes phospholipids, but the specific types of lipids can differ (e.g., prokaryotic membranes may contain negatively charged lipids).
- Despite differences, both types of cells share the fundamental structure of a plasma membrane.
- **Conclusion**: There is some similarity in the presence of a plasma membrane, even though the specific compositions differ.

5. **Option 4: Nature of Nucleus**:
- Prokaryotic cells do not have a true nucleus; they have a nucleoid region where DNA is located.
- Eukaryotic cells have a true nucleus with a nuclear membrane.
- **Conclusion**: The nature of the nucleus is fundamentally different between the two cell types.

6. **Final Conclusion**:
- After analyzing all options, the only aspect that shows some similarity is the **composition of the plasma membrane**. Therefore, the answer is that the similar character between prokaryotic and eukaryotic cells is the **composition of the plasma membrane**.

### Answer:
**The similar character between prokaryotic cells and eukaryotic cells is the composition of plasma membrane.**