Which of the following are not inclusion bodies in the cytoplasm of prokaryotic cells

Options

A. Phosphate granules
B. Gas vacuoles
C. Cyanophycean granules
D. Glycogen granules

Answer

To determine which of the following are not inclusion bodies in the cytoplasm of prokaryotic cells, we will analyze each option provided.

### Step-by-Step Solution:

1. **Understand Inclusion Bodies**: Inclusion bodies are distinct granules found in the cytoplasm of prokaryotic cells that serve as storage sites for nutrients, reserves, or other substances.

2. **Evaluate Each Option**:
- **Option 1: Phosphate Granules**: These are indeed inclusion bodies found in prokaryotic cells. They store phosphate and are commonly seen in bacteria.
- **Option 2: Gas Vacuole**: Gas vacuoles are not considered inclusion bodies. Instead, they are structures that provide buoyancy to certain bacteria, allowing them to float in aquatic environments.
- **Option 3: Cyanophysine Granules**: These are also inclusion bodies in prokaryotic cells, specifically storing nitrogen in cyanobacteria.
- **Option 4: Glycogen Granules**: Glycogen granules are another type of inclusion body that serves as a storage form of glucose in prokaryotic cells.

3. **Identify the Correct Answer**: From the analysis above, the only option that is not an inclusion body is **Option 2: Gas Vacuole**.

### Final Answer:
The correct answer is **Gas Vacuole** (Option 2), as it is not an inclusion body in the cytoplasm of prokaryotic cells.

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