Select incorrect statement about fungi?

Options

A. The cell walls are composed of chittin and polysaccharides
B. These are heterotrophic organisms
C. They are autotrophic organism
D. They are absorptive in nature

Answer

**Step-by-Step Solution:**

1. **Understanding Fungi**: Fungi are classified in their own kingdom due to their unique characteristics, primarily their mode of nutrition.

2. **Mode of Nutrition**: Fungi are heterotrophic organisms, meaning they cannot produce their own food. They rely on other organisms for nutrition.

3. **Types of Nutrition**: Fungi exhibit two main types of heterotrophic nutrition:
- **Saprophytic**: Feeding on dead and decaying organic matter.
- **Parasitic**: Deriving nutrition from a host organism.

4. **Cell Wall Composition**: The cell walls of fungi are made up of chitin, which is a type of polysaccharide. This is a key characteristic that differentiates fungi from plants (which have cell walls made of cellulose).

5. **Analyzing Statements**:
- **Statement 1**: "The cell walls are composed of chitin and polysaccharide." - This statement is true.
- **Statement 2**: "They are heterotrophic organisms." - This statement is true.
- **Statement 3**: "They are autotrophic organisms." - This statement is false, as fungi cannot prepare their own food.
- **Statement 4**: "They are absorptive in nature." - This statement is true.

6. **Identifying the Incorrect Statement**: The incorrect statement about fungi is "They are autotrophic organisms."

**Final Answer**: The incorrect statement is option 3: "They are autotrophic organisms."

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