Which of the following is associated with cell division?

Options

A. centriole
B. ribosomes
C. mitochondria
D. chloroplast

Answer

To determine which of the following organelles is associated with cell division, we will analyze each option: centrioles, ribosomes, mitochondria, and chloroplasts.

### Step-by-Step Solution:

1. **Understanding Cell Division**:
- Cell division is a process by which a parent cell divides into two or more daughter cells. This process is crucial for growth, development, and repair in organisms.

2. **Analyzing the Options**:
- **Chloroplasts**:
- Function: Chloroplasts are involved in photosynthesis, the process by which plants convert sunlight into energy.
- Conclusion: Chloroplasts are not directly involved in cell division.

- **Mitochondria**:
- Function: Mitochondria are known as the powerhouse of the cell, where respiration occurs and ATP (energy) is produced.
- Conclusion: Mitochondria play a role in energy production but are not directly involved in the process of cell division.

- **Ribosomes**:
- Function: Ribosomes are the sites of protein synthesis in the cell. They are essential for building proteins but do not play a role in cell division itself.
- Conclusion: Ribosomes are important for cellular functions but are not associated with cell division.

- **Centrioles**:
- Function: Centrioles are cylindrical structures found in animal cells that are part of the cytoskeleton. They play a crucial role in organizing the microtubules during cell division, specifically in the formation of the spindle fibers that separate chromosomes.
- Conclusion: Centrioles are directly associated with cell division.

3. **Final Answer**:
- Based on the analysis, the organelle that is associated with cell division is **centrioles**.