Which of the following statement is incorrect w.r.t. Prokaryotes ?

Options

A. They have primitive type of cells that lack nucleus
B. They have membrane bound cell organelles like ER
C. They have 70S ribosomes
D. They multiply much faster than eukaryotic cells

Answer

To determine which statement is incorrect regarding prokaryotes, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Understanding Prokaryotes**:
- Prokaryotes are defined as organisms that lack a true nucleus and membrane-bound organelles. They are considered primitive cells.

2. **Analyzing the Statements**:
- **Statement 1**: "They have primitive type of cells that lack nucleus."
- This statement is correct. Prokaryotes do lack a true nucleus; instead, they have a nucleoid region where their genetic material is located.

- **Statement 2**: "They have membrane bound cell organelles like endoplasmic reticulum."
- This statement is incorrect. Prokaryotes do not have membrane-bound organelles, including the endoplasmic reticulum. They lack all membrane-bound organelles.

- **Statement 3**: "They have 70S ribosomes."
- This statement is correct. Prokaryotes contain 70S ribosomes, which are smaller than the 80S ribosomes found in eukaryotes.

- **Statement 4**: "They multiply much faster than the eukaryotic cells."
- This statement is also correct. Prokaryotes reproduce through binary fission, a simpler and faster process compared to eukaryotic cell division.

3. **Conclusion**:
- The incorrect statement regarding prokaryotes is: "They have membrane bound cell organelles like endoplasmic reticulum."

### Final Answer:
The incorrect statement with respect to prokaryotes is: **"They have membrane bound cell organelles like endoplasmic reticulum."**

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