One of the following is not true for hydrophytes

Options

A. Vessels are usually absent
B. Cuticle is poorly developed
C. Tracheids are absent
D. Air chambers are well developed

Answer

To determine which statement is not true for hydrophytes, we need to analyze the characteristics of hydrophytes and the options provided.

### Step-by-Step Solution:

1. **Understand Hydrophytes**:
- Hydrophytes are plants that grow in water. They are adapted to aquatic environments.

2. **Identify Key Features of Hydrophytes**:
- **Xylem Development**: In hydrophytes, the xylem is usually well-developed to facilitate the transport of water.
- **Vessels**: Typically, hydrophytes do not have vessels; instead, they have tracheids.
- **Tracheids**: These are specialized cells for water conduction and are well-developed in hydrophytes.
- **Air Chambers**: Hydrophytes often have air chambers that help them float and maintain buoyancy.
- **Cuticle**: The cuticle is usually poorly developed or absent in hydrophytes since they are submerged in water and do not need to prevent water loss.

3. **Analyze the Options**:
- **Option 1**: "Vessels are usually absent." - This is true for hydrophytes.
- **Option 2**: "Cuticle is poorly developed." - This is also true.
- **Option 3**: "Tracheids are absent." - This is not true; tracheids are well-developed in hydrophytes.
- **Option 4**: "Air chambers are well developed." - This is true.

4. **Conclusion**:
- The statement that is not true for hydrophytes is **Option 3: "Tracheids are absent."**

### Final Answer:
The statement that is not true for hydrophytes is **"Tracheids are absent."**

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