Which of the following organelle is concerned with generation of ATP through electron transport and oxidative phosphorylation?

Options

A. Chloroplast
B. Mitochondria
C. Glyoxysome
D. Both(1)and(2)

Answer

To answer the question "Which of the following organelle is concerned with generation of ATP through electron transport and oxidative phosphorylation?", we will analyze each option provided.

### Step-by-Step Solution:

1. **Identify the Organelles**: We have four options to consider:
- Chloroplast
- Mitochondria
- Glyoxysome
- Both 1 & 2 (Chloroplast and Mitochondria)

2. **Evaluate Chloroplast**:
- Chloroplasts are primarily involved in photosynthesis, which is the process of converting light energy into chemical energy in the form of glucose. They do not directly generate ATP through electron transport and oxidative phosphorylation.
- **Conclusion**: Chloroplast is **not** the correct answer.

3. **Evaluate Mitochondria**:
- Mitochondria are known as the "powerhouse of the cell." They are responsible for producing ATP through cellular respiration, which includes the processes of electron transport and oxidative phosphorylation.
- **Conclusion**: Mitochondria is the correct answer.

4. **Evaluate Glyoxysome**:
- Glyoxysomes are specialized peroxisomes found in plants that are involved in the conversion of stored fats into carbohydrates during germination. They do not play a role in ATP generation through electron transport or oxidative phosphorylation.
- **Conclusion**: Glyoxysome is **not** the correct answer.

5. **Evaluate Option "Both 1 & 2"**:
- Since we have established that chloroplasts do not generate ATP through electron transport and oxidative phosphorylation, this option is also incorrect.
- **Conclusion**: Option "Both 1 & 2" is **not** the correct answer.

### Final Answer:
The correct answer is **Mitochondria**.

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