Which cell organelle is related to oxidative phosphorylation ?

Options

A. Chloroplast
B. Golgi body
C. Mitochondria
D. ER

Answer

**Step-by-Step Solution:**

1. **Understanding Oxidative Phosphorylation**:
- Oxidative phosphorylation is a metabolic pathway where cells oxidize nutrients to release energy. This energy is then used to produce ATP (adenosine triphosphate), which is the primary energy currency of the cell.

2. **Identifying the Organelles**:
- The options provided are chloroplast, Golgi body, mitochondria, and endoplasmic reticulum (ER). Each of these organelles has different functions within the cell.

3. **Function of Mitochondria**:
- Mitochondria are known as the "powerhouse of the cell" because they are the primary site for ATP production through processes such as oxidative phosphorylation. They contain the necessary enzymes and structures (like the electron transport chain) to facilitate this process.

4. **Eliminating Other Options**:
- **Chloroplasts** are involved in photosynthesis, not oxidative phosphorylation.
- **Golgi bodies** are responsible for modifying, sorting, and packaging proteins and lipids, not energy production.
- **Endoplasmic reticulum (ER)** is involved in protein and lipid synthesis but does not directly participate in oxidative phosphorylation.

5. **Conclusion**:
- Based on the functions of these organelles, the correct answer to the question is **mitochondria**, as it is directly related to the process of oxidative phosphorylation.

**Final Answer**: Mitochondria

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