Which one of the following is true for fungi

Options

A. They are heterotrophs
B. They lack nuclear membrane
C. They are phagotrophs
D. They lack rigid cell wall.

Answer

### Step-by-Step Solution:

1. **Understanding Fungi**: Fungi are a group of organisms that are classified as eukaryotes. They are distinct from plants, animals, and bacteria.

2. **Nutrition Type**: Fungi are heterotrophs, meaning they cannot produce their own food through photosynthesis (as they lack chlorophyll). Instead, they obtain nutrients by absorbing organic matter.

3. **Types of Heterotrophy**: Fungi can be classified based on their mode of nutrition:
- **Parasitic**: They derive nutrients from living hosts, often harming them in the process.
- **Saprophytic**: They feed on dead and decaying organic matter, playing a crucial role in decomposition.

4. **Cell Structure**: Fungi are eukaryotic, which means they have a defined nucleus enclosed by a nuclear membrane. This is a key characteristic that distinguishes them from prokaryotic organisms.

5. **Cell Wall Composition**: The cell walls of fungi are made of chitin or fungal cellulose, which gives them a rigid structure. This is an important feature that supports their shape and protects them.

6. **Evaluating the Options**:
- **Option 1**: "They are heterotrophs" - This is true based on our understanding of fungi.
- **Option 2**: "They lack nuclear membranes" - This is false because fungi are eukaryotic and possess nuclear membranes.
- **Option 3**: "They are phagotrophs" - This is misleading; while fungi are heterotrophs, they do not primarily feed by engulfing particles like phagotrophs do.
- **Option 4**: "They lack rigid cell walls" - This is false; fungi have rigid cell walls due to the presence of chitin.

7. **Conclusion**: Based on the evaluation, the only true statement regarding fungi is that they are heterotrophs.

### Final Answer:
The true statement about fungi is: **They are heterotrophs.**

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