Quantasomes are found in

Options

A. Mitochondria
B. Chloroplast
C. Lysosome
D. Endoplasmic reticulum

Answer

**Step-by-Step Solution:**

1. **Understanding Quantasomes**: Begin by defining what quantasomes are. Quantasomes are particles that play a crucial role in photosynthesis.

2. **Historical Context**: Mention that quantasomes were first identified by Roderick B. Park in 1962, which adds credibility to the information.

3. **Location of Quantasomes**: Identify where quantasomes are located. They are found in the thylakoids of chloroplasts, which are the sites of photosynthesis in plants.

4. **Structure of Quantasomes**: Describe the composition of quantasomes. They are made up of lipids and proteins, and they contain various photosynthetic pigments and redox carriers.

5. **Pigment Systems**: Explain that each quantasome forms two pigment systems, known as Photosystem I (PS1) and Photosystem II (PS2), which are essential for the light reactions of photosynthesis.

6. **Chlorophyll Content**: Note that each quantasome contains approximately 230-250 chlorophyll molecules, which are vital for capturing light energy.

7. **Evaluating Options**: Review the options given in the question:
- Mitochondria: Incorrect
- Chloroplast: Correct
- Lysosome: Incorrect
- Endoplasmic reticulum: Incorrect

8. **Conclusion**: Conclude that the correct answer is chloroplast, as quantasomes are specifically found in the thylakoids of chloroplasts.

**Final Answer**: Quantasomes are found in chloroplasts.

---