which cell organelle is known as the power house of the cell ?

Options

A. Mitochondria
B. Cytoplasm
C. Cell wall
D. Nucleus

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks which cell organelle is referred to as the "powerhouse of the cell." This term is commonly used in biology to describe an organelle that is responsible for energy production.

2. **Reviewing the Options**: The options provided are:
- A) Mitochondria
- B) Cytoplasm
- C) Cell Wall
- D) Nucleus

3. **Analyzing Each Option**:
- **Cytoplasm**: This is the jelly-like substance that fills the cell and contains all organelles. It does not produce energy.
- **Cell Wall**: This is a rigid outer layer found in plant cells, bacteria, and fungi, providing support and protection. It does not generate energy.
- **Nucleus**: This is the control center of the cell, containing genetic material. It regulates cell activities but does not produce energy.
- **Mitochondria**: This organelle is known for its role in energy production. It converts nutrients into ATP (adenosine triphosphate), which is the energy currency of the cell.

4. **Identifying the Correct Answer**: Since mitochondria are responsible for producing ATP, they are known as the powerhouse of the cell.

5. **Conclusion**: The correct answer is **A) Mitochondria**.

---