Mitochondria are called power houses because they store

Options

A. Glycogen
B. Glucose
C. ATP
D. Fats.

Answer

**Step-by-Step Solution:**

1. **Understanding Mitochondria**: Mitochondria are membrane-bound organelles found in eukaryotic cells. They have a double membrane structure, consisting of an outer membrane and a highly folded inner membrane.

2. **Function of Mitochondria**: The primary function of mitochondria is to produce energy for the cell. This energy is in the form of ATP (adenosine triphosphate), which is known as the energy currency of the cell.

3. **Krebs Cycle**: Inside the mitochondria, particularly in the matrix, the Krebs cycle (also known as the citric acid cycle) occurs. This cycle breaks down pyruvate (derived from glucose) and produces high-energy molecules such as NADH and FADH2.

4. **Electron Transport Chain (ETC)**: The high-energy molecules (NADH and FADH2) produced in the Krebs cycle are then used in the electron transport chain, which is located on the cristae (the folds of the inner membrane). The ETC is responsible for converting these high-energy molecules into ATP.

5. **Conclusion**: Mitochondria are called the "powerhouses of the cell" because they are responsible for the production of ATP, which is essential for cellular energy. They do not store glucose or fats; instead, they break down glucose to produce energy.

**Final Answer**: Mitochondria are called powerhouses because they store ATP, which is produced during cellular respiration.

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