Who is the controller of cell:-

Options

A. Mitochondria
B. Nucleus
C. Golgi bodies
D. Endoplasmic reticulum

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks, "Who is the controller of the cell?" This implies we need to identify the organelle or structure that regulates and manages cellular activities.

2. **Evaluating the Options**:
- **Option 1: Mitochondria**: This organelle is known as the powerhouse of the cell because it produces ATP (adenosine triphosphate), which is the energy currency of the cell. However, it does not control cellular functions.
- **Option 2: Nucleus**: The nucleus is often referred to as the control center of the cell. It contains the cell's genetic material (DNA) and is responsible for regulating various cellular activities, including growth, metabolism, and reproduction by controlling the synthesis of proteins and enzymes.
- **Option 3: Golgi Body**: The Golgi apparatus is involved in the packaging and distribution of proteins and lipids but does not control cellular functions.
- **Option 4: Endoplasmic Reticulum (ER)**: The ER is involved in the synthesis of proteins (rough ER) and lipids (smooth ER), but it does not serve as the controller of the cell.

3. **Identifying the Correct Answer**: After evaluating all the options, it is clear that the nucleus is the correct answer as it controls the cell's activities through its genetic information and regulation of protein synthesis.

4. **Conclusion**: The controller of the cell is the **Nucleus**.

### Final Answer:
The controller of the cell is the **Nucleus**.

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