Which of the following is known as the powerhouse of the cell?

Options

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

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the organelle that is known as the "powerhouse of the cell." This term is commonly used in biology to refer to a specific part of the cell that plays a crucial role in energy production.

2. **Identifying Cell Organelles**: We need to consider the options provided:
- A) Cell wall
- B) Nucleus
- C) Ribosome
- D) Mitochondria

3. **Analyzing Each Option**:
- **Cell Wall**: This is a rigid structure that provides support and protection to plant cells, but it does not produce energy.
- **Nucleus**: Known as the "brain of the cell," it contains genetic material and regulates cell activities, but it is not involved in energy production.
- **Ribosome**: This organelle is responsible for protein synthesis, not energy production.
- **Mitochondria**: This organelle is known for its role in producing ATP (adenosine triphosphate), which is the energy currency of the cell.

4. **Conclusion**: Based on the analysis, the correct answer is **D) Mitochondria**, as it is known as the powerhouse of the cell due to its role in ATP synthesis.

5. **Final Answer**: Mitochondria is known as the powerhouse of the cell.

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