Which of the following Cell organelles has the electron transport system ?

Options

A. Organelle related to the oxidation of carbohydrates
B. Organelle related to the synthesis of food
C. Organelle related to the degradation of food
D. (a) and (b) both

Answer

To solve the question "Which of the following cell organelles has the electron transport system?", we will analyze each option provided and determine whether it contains the electron transport system (ETS).

### Step-by-Step Solution:

1. **Identify the Organelles**: The question asks about specific cell organelles that may contain the electron transport system. Common organelles to consider include mitochondria, chloroplasts, and lysosomes.

2. **Mitochondria**:
- **Function**: Mitochondria are known as the powerhouse of the cell. They are primarily involved in the oxidation of carbohydrates and the production of ATP through cellular respiration.
- **Electron Transport System**: The electron transport chain (ETC) is located in the inner mitochondrial membrane. It plays a crucial role in aerobic respiration by transferring electrons derived from nutrients to oxygen, ultimately producing ATP.
- **Conclusion**: Mitochondria do contain the electron transport system.

3. **Chloroplasts**:
- **Function**: Chloroplasts are responsible for photosynthesis, the process by which plants synthesize food using light energy.
- **Electron Transport System**: During photosynthesis, the light-dependent reactions occur in the thylakoid membranes of chloroplasts, where an electron transport chain is also present. This chain helps in the conversion of light energy into chemical energy, producing ATP and NADPH.
- **Conclusion**: Chloroplasts also contain the electron transport system.

4. **Lysosomes**:
- **Function**: Lysosomes are involved in the degradation of waste materials and cellular debris. They contain digestive enzymes that break down macromolecules.
- **Electron Transport System**: Lysosomes do not have an electron transport chain. Their function does not involve the transfer of electrons for energy production.
- **Conclusion**: Lysosomes do not contain the electron transport system.

5. **Final Answer**: Since both mitochondria and chloroplasts contain the electron transport system, the correct answer is that the electron transport system is present in both of these organelles.

### Answer: Both Mitochondria and Chloroplasts have the electron transport system.