Parenchyma cells containing air cavities are called

Options

A. aerenchyma
B. sclerenchyma
C. chlorenchyma
D. prosenchyma

Explanation

To answer the question "Parenchyma cells containing air cavities are called," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Parenchyma Cells**:
- Parenchyma cells are a type of simple tissue in plants. They are characterized by their thin cell walls made of cellulose and can be oval, round, or spherical in shape.

**Hint**: Remember that parenchyma cells are the most common and versatile type of plant cells.

2. **Functions of Parenchyma Cells**:
- These cells primarily function in processes such as photosynthesis, storage of nutrients, and secretion.

**Hint**: Think about the various roles parenchyma plays in plant life, especially in storage and photosynthesis.

3. **Modified Parenchyma Cells**:
- Some parenchyma cells are modified to contain air cavities. These modifications allow the cells to provide buoyancy, especially in aquatic plants.

**Hint**: Consider how air cavities might help plants that live in water.

4. **Identifying the Correct Term**:
- The specific type of parenchyma cells that contain air cavities is known as "Arenchyma."

**Hint**: Focus on the prefix "Aren-" which relates to air or space.

5. **Eliminating Other Options**:
- The other options provided (sclerenchyma, collenchyma, prosenchyma) refer to different types of plant tissues that do not contain air cavities. Sclerenchyma provides mechanical support, collenchyma supports young plant parts, and prosenchyma are transfer cells.

**Hint**: Recall the functions and characteristics of the other types of tissues to differentiate them from parenchyma.

### Final Answer:
The correct answer is **Arenchyma**.