Leucosin (Chrysolaminarin) is a carbohydrate which is stored as reserve food in case of

Options

A. Diatoms
B. Euglena
C. Dinoflagellates
D. Paramecium

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about Leucosin (Chrysolaminarin), a carbohydrate stored as reserve food. We need to identify which organism among the given options stores this carbohydrate.

2. **Analyzing the Options**:
- **Option 1: Diatoms**: Diatoms are known to be chief producers in aquatic environments and utilize photosynthesis. They store reserve food in the form of Leucosin (Chrysolaminarin) and oils.
- **Option 2: Euglena**: Euglena stores food as paramylum starch in paramylum bodies. It has a mixotrophic mode of nutrition.
- **Option 3: Dinoflagellates**: Dinoflagellates also perform photosynthesis and store food as starch and oils, not Leucosin.
- **Option 4: Paramecium**: Paramecium, a protozoan, uses a holozoic mode of nutrition and does not store Leucosin.

3. **Identifying the Correct Answer**: Based on the analysis, the only organism that stores Leucosin as reserve food is **Diatoms**. Therefore, the correct answer is **Option 1: Diatoms**.

4. **Conclusion**: Leucosin (Chrysolaminarin) is primarily stored as reserve food in diatoms.

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