Which of the following is called the power house of a sperm?

Options

A. Acrosome
B. Nucleus
C. Middle piece
D. Tail

Answer

**Step-by-Step Solution:**

1. **Understanding the Structure of Sperm**:
- A sperm cell consists of several key parts: the head, neck, middle piece, and tail. Each part has a specific function.

2. **Identifying the Function of Each Part**:
- **Head**: Contains the acrosome, which is important for penetrating the ovum. It carries enzymes that help degrade the protective layers of the ovum.
- **Neck**: Acts as a support structure for the sperm.
- **Middle Piece**: Contains mitochondria, which are crucial for energy production.
- **Tail**: Responsible for the motility of the sperm, allowing it to swim towards the ovum.

3. **Focusing on the Middle Piece**:
- The middle piece is specifically known as the powerhouse of the sperm because it contains mitochondria.
- Mitochondria produce ATP (adenosine triphosphate), which provides the necessary energy for the tail's movement.

4. **Conclusion**:
- Since the middle piece is where the mitochondria are located and is responsible for supplying energy for the sperm's motility, it is correctly identified as the powerhouse of the sperm.

**Final Answer**: The middle piece is called the powerhouse of a sperm.

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