Laminarin is a reserve product characteristic of

Options

A. Green algae
B. Blue green algae
C. Red algae
D. Brown algae

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about laminarin, which is a reserve product. We need to identify which group of algae it is characteristic of.

2. **Identifying Types of Algae**: There are four main types of algae mentioned:
- Green algae (Chlorophyceae)
- Brown algae (Phaeophyceae)
- Red algae (Rhodophyceae)
- Blue-green algae (Cyanobacteria)

3. **Examining Reserve Products**: Each type of algae has a specific way of storing food:
- Green algae store food as starch.
- Brown algae store food as laminarin and mannitol.
- Red algae store food as floridean starch.
- Blue-green algae (Cyanobacteria) also store food as starch.

4. **Focusing on Laminarin**: Since the question specifically mentions laminarin, we need to focus on which type of algae stores food in this form. From the information gathered, laminarin is specifically mentioned as a reserve product of brown algae.

5. **Conclusion**: Therefore, the correct answer to the question is that laminarin is a reserve product characteristic of brown algae.

**Final Answer**: Laminarin is a reserve product characteristic of brown algae (Phaeophyceae).

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