In euglenoids, the stored food is paramylum which is a :-

Options

A. Conversion product of glycogen
B. Conversion product of starch
C. A type of lipid
D. A type of protein

Answer

**Step-by-Step Solution:**

1. **Understanding Euglenoids**: Euglenoids are a group of single-celled organisms that possess characteristics of both plants and animals. They are known for their ability to photosynthesize due to the presence of chlorophyll.

2. **Identifying Stored Food**: In euglenoids, the primary stored food is a substance known as paramylum. This is crucial for understanding the nutritional storage in these organisms.

3. **Defining Paramylum**: Paramylum is a polysaccharide, which means it is a carbohydrate made up of long chains of sugar molecules. Specifically, it is a conversion product of starch.

4. **Chemical Structure of Paramylum**: Paramylum consists of successive glucose residues linked together. The type of linkage that connects these glucose units is primarily beta 1,3 linkage. Additionally, branch points in paramylum are connected via beta 1,6 linkages.

5. **Synthesis of Paramylum**: The chloroplasts in euglenoids, which contain chlorophyll, are responsible for the synthesis of carbohydrates through photosynthesis. The carbohydrates produced are stored in the form of starch granules and paramylum.

6. **Conclusion**: Based on the information gathered, paramylum is specifically a conversion product of starch. Therefore, the correct answer to the question is that paramylum is a conversion product of starch.

**Final Answer**: Paramylum is a conversion product of starch.

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