Which organelle occurs both in plants and animals ?

Options

A. Cell wall
B. Mitochondria
C. Centriole
D. Chloroplast

Answer

To answer the question "Which organelle occurs both in plants and animals?", we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Options**: The options given are:
- Cell wall
- Mitochondria
- Centriole
- Chloroplast

2. **Analyze Each Organelle**:
- **Cell Wall**:
- The cell wall is a rigid structure found in plant cells. It is primarily composed of cellulose.
- **Conclusion**: Not present in animal cells.

- **Mitochondria**:
- Mitochondria are known as the "powerhouses of the cell" as they generate ATP (adenosine triphosphate), which is the energy currency of the cell.
- **Conclusion**: Present in both plant and animal cells.

- **Centriole**:
- Centrioles are involved in cell division and are part of the cytoskeleton.
- **Conclusion**: Not present in plant cells; only found in animal cells.

- **Chloroplast**:
- Chloroplasts are the organelles responsible for photosynthesis, converting sunlight into energy.
- **Conclusion**: Present only in plant cells.

3. **Determine the Common Organelle**:
- Based on the analysis, the only organelle that is present in both plant and animal cells is **mitochondria**.

4. **Final Answer**:
- Therefore, the organelle that occurs both in plants and animals is **mitochondria**.