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 that produces ATP (adenosine triphosphate) using energy derived from the oxidation of nutrients.

2. **Identifying the Organelles**:
- The question provides four options: chloroplast, Golgi body, mitochondrion, and endoplasmic reticulum. We need to determine which of these is involved in oxidative phosphorylation.

3. **Analyzing Each Option**:
- **Chloroplast**: This organelle is primarily involved in photosynthesis, where light energy is converted into chemical energy. It is not directly involved in oxidative phosphorylation.
- **Golgi Body**: This organelle is responsible for modifying, sorting, and packaging proteins and lipids. It does not play a role in oxidative phosphorylation.
- **Mitochondrion**: This organelle is known as the powerhouse of the cell. It is the primary site for ATP synthesis through oxidative phosphorylation, where nutrients are oxidized to release energy.
- **Endoplasmic Reticulum**: This organelle is involved in protein and lipid synthesis. It does not participate in oxidative phosphorylation.

4. **Conclusion**:
- Based on the analysis, the organelle related to oxidative phosphorylation is the mitochondrion. Therefore, the correct answer is option number 3: mitochondrion.

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