Aerenchyma is found in

Options

A. Hydrophytes
B. Lithophytes
C. Sciophytes
D. Xerophytes

Answer

**Step-by-Step Solution:**

1. **Understanding Aerenchyma**: Aerenchyma is a specialized type of parenchyma tissue in plants. It is characterized by large air-filled spaces (chambers) that provide buoyancy and facilitate gas exchange.

2. **Function of Aerenchyma**: The primary function of aerenchyma is to help plants float in water and to facilitate the exchange of gases, particularly in aquatic environments.

3. **Identifying the Types of Plants**: The question asks where aerenchyma is found. We need to consider different types of plants:
- **Hydrophytes**: These are aquatic plants that thrive in water. Examples include lotus and phytoplankton. They require aerenchyma for buoyancy and gas exchange.
- **Lithophytes**: These plants grow on rocks and do not typically require aerenchyma, as they are not in water.
- **Schiophytes**: Also known as shade-loving plants, they do not need aerenchyma since they grow in shaded areas away from water.
- **Xerophytes**: These are plants adapted to dry environments (like cacti) and do not require aerenchyma for buoyancy.

4. **Conclusion**: Based on the characteristics of the different plant types, aerenchyma is primarily found in hydrophytes, as they are adapted to living in watery conditions.

**Final Answer**: Aerenchyma is found in hydrophytes.

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