Identify the correct statement from the following .

Options

A. Prokaryotic cells has only one ribosome
B. Vacuoles are not present in all prokaryotic cells.
C. Cell wall is present in all prokaryotic cells.
D. Size of a typical eukaryotic cell is 10-20 im.

Answer

To solve the question "Identify the correct statement from the following," we need to evaluate each of the provided statements about prokaryotic and eukaryotic cells.

### Step-by-Step Solution:

1. **Evaluate the First Statement**:
- The first statement claims that "prokaryotic cell has only one ribosome."
- This statement is incorrect because prokaryotic cells have multiple ribosomes that are scattered throughout the cytoplasm, not just one.

2. **Evaluate the Second Statement**:
- The second statement mentions that "vacuoles are not present in all prokaryotic cells."
- This statement is correct. While some prokaryotic cells may have vacuoles, they are not universally present in all prokaryotes. Vacuoles play a role in osmoregulation in those that do have them.

3. **Evaluate the Third Statement**:
- The third statement asserts that "cell wall is present in all prokaryotic cells."
- This statement is incorrect. For example, mycoplasma are prokaryotic cells that lack a cell wall.

4. **Evaluate the Fourth Statement**:
- The fourth statement states that "the size of the typical eukaryotic cell is 10 to 20 micrometers."
- This statement is also incorrect. The typical size of a eukaryotic cell ranges from 10 to 100 micrometers.

5. **Conclusion**:
- After evaluating all the statements, the only correct statement is the second one: "vacuoles are not present in all prokaryotic cells."

### Final Answer:
The correct statement is: **"Vacuoles are not present in all prokaryotic cells."**

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