Which one of the following statements is wrong ?

Options

A. Archaebacteria differ from eubacteria have similar structured cell wall
B. Mesosomes perform the function of mitochondria in bacteria
C. Cyanobacteria are also called blue green algae.
D. The structures that help some bacteria to attach to rocks and/or host tissue are fimbriae .

Answer

To solve the question, we need to analyze each statement provided and determine which one is incorrect.

### Step-by-Step Solution:

1. **Understanding the Groups of Bacteria**:
- Bacteria are classified into two main groups: **Archaebacteria** and **Eubacteria**.
- Archaebacteria thrive in extreme environments (e.g., hot springs, salty lakes), while Eubacteria are considered "true bacteria" and are found in more common environments.

**Hint**: Remember the environments where each type of bacteria is found.

2. **Analyzing the First Statement**:
- The first statement claims that "R-Bacteria differ from E-Bacteria have similar structured cell wall."
- This statement is misleading because Archaebacteria (R-Bacteria) have a different cell wall structure compared to Eubacteria (E-Bacteria). Therefore, this statement is **wrong**.

**Hint**: Focus on the structural differences between the cell walls of Archaebacteria and Eubacteria.

3. **Analyzing the Second Statement**:
- The second statement mentions that "Mesozoome performs the same function of mitochondria in bacteria."
- This is correct because mesosomes (invaginations of the bacterial cell membrane) take on the role of ATP production, similar to mitochondria in eukaryotic cells.

**Hint**: Recall the function of mitochondria and how mesosomes relate to it in bacteria.

4. **Analyzing the Third Statement**:
- The third statement states that "Cyanobacteria are also called blue-green algae."
- This is accurate; cyanobacteria are indeed referred to as blue-green algae, and they are part of the Monera kingdom.

**Hint**: Remember the common names and classifications of cyanobacteria.

5. **Analyzing the Fourth Statement**:
- The fourth statement indicates that "the structures that help some bacteria to attach to rocks or host tissue are Fimbrae."
- This statement is also correct. Fimbrae are hair-like structures that assist bacteria in adhering to surfaces.

**Hint**: Think about the role of Fimbrae in bacterial attachment.

### Conclusion:
After analyzing all the statements, the first statement is identified as incorrect. Therefore, the wrong statement is:

**Answer**: The first statement is wrong.