Cell structures that are exclusively found in animal cells but not in plant cells are

Options

A. Plastids
B. Cell wall
C. Centrioles
D. Gas vacuoles

Answer

To answer the question regarding cell structures that are exclusively found in animal cells but not in plant cells, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: We need to identify cell structures that are unique to animal cells. This means we are looking for components that are not present in plant cells.

2. **Review Common Cell Structures**:
- **Plant Cells**: Typically contain structures like cell walls, chloroplasts, and large central vacuoles.
- **Animal Cells**: Lack cell walls and chloroplasts but have other structures.

3. **Evaluate the Options**:
- **Option A: Plastids**: These are found in plant cells (e.g., chloroplasts) and are not present in animal cells.
- **Option B: Cell Wall**: This is a defining feature of plant cells, providing structure and support, and is absent in animal cells.
- **Option C: Centrioles**: These are cylindrical structures involved in cell division and are found only in animal cells.
- **Option D: Gas Vacuoles**: These are typically found in certain bacteria and are not exclusive to animal cells.

4. **Identify the Correct Answer**: Among the options evaluated, **Centrioles (Option C)** are exclusively found in animal cells and are absent in plant cells.

5. **Conclusion**: Therefore, the correct answer to the question is **Centrioles**.

### Final Answer:
The cell structure that is exclusively found in animal cells but not in plant cells is **Centrioles**.

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