The cell organelle bounded by a unit membrane, reported first by Rhodin is involved in reaction

Options

A. Formation of glycolate from phosphoglycolate
B. Conversion of glycerate to PGA
C. Conversion of glycine to serine
D. Conversion of serine to leucine

Answer

**Step-by-Step Solution:**

1. **Identify the Cell Organelle**: The question asks for a cell organelle that is bounded by a unit membrane and was first reported by Rhodin. The organelle in question is **peroxisomes**.

2. **Understand the Function of Peroxisomes**: Peroxisomes are involved in various metabolic reactions, including the breakdown of fatty acids and the detoxification of hydrogen peroxide. They contain enzymes that facilitate these reactions.

3. **Link to Photorespiration**: In plants, particularly C3 plants, peroxisomes play a crucial role in the process of **photorespiration**. This process occurs when the enzyme Rubisco binds to oxygen instead of carbon dioxide due to high oxygen levels and temperature.

4. **Describe the Reaction**: During photorespiration, the reaction leads to the formation of one molecule of phosphoglycolate and one molecule of phosphoglycerate. This process is also referred to as the **C2 cycle**.

5. **Conclusion**: Based on the information provided, the correct answer to the question is that peroxisomes are the organelles involved in the reaction of photorespiration in C3 plants.

**Final Answer**: The cell organelle bounded by a unit membrane, reported first by Rhodin, is **peroxisomes**, which are involved in the process of **photorespiration**.

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