Which of the following performs respiration with the help of plasma membrane :–

Options

A. Bacteria
B. Mycoplasma
C. Fungi
D. All the above

Answer

To solve the question "Which of the following performs respiration with the help of plasma membrane?", we will analyze each option provided.

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks which organism performs respiration using its plasma membrane. This implies that the organism must rely on its plasma membrane for the respiratory process instead of specialized organelles like mitochondria.

2. **Analyzing the First Option - Bacteria**:
- Bacteria are unicellular prokaryotic organisms.
- They do not have well-developed cellular organelles or mitochondria.
- Instead, they utilize their plasma membrane for respiration.
- The plasma membrane of bacteria contains structures called mesosomes, which are infoldings that increase surface area and provide sites for the enzymes involved in respiration.
- **Conclusion**: Bacteria perform respiration with the help of their plasma membrane.

3. **Analyzing the Second Option - Mycoplasma**:
- Mycoplasma is a genus of bacteria that lack a cell wall.
- However, like other bacteria, they also do not possess mitochondria and rely on their plasma membrane for respiration.
- Therefore, this option is also correct, as Mycoplasma performs respiration through its plasma membrane.

4. **Analyzing the Third Option - Fungi**:
- Fungi are multicellular organisms (with some exceptions like yeast) that have a true nucleus enclosed by a membrane.
- They perform respiration primarily in mitochondria, not through the plasma membrane.
- **Conclusion**: Fungi do not perform respiration with the help of their plasma membrane.

5. **Analyzing the Fourth Option - All of the Above**:
- Since fungi do not perform respiration using the plasma membrane, this option is incorrect.
- **Conclusion**: This option cannot be correct.

### Final Answer:
The correct answer is **Bacteria** (and Mycoplasma, but since the question asks for which performs respiration with the help of plasma membrane, we primarily focus on bacteria).