Identify the living plant tissues , whose main function is to provide buoyancy to the plant .

Options

A. Sclerenchyma fibres
B. Sclereids
C. Collenchyma
D. Modified parenchyma

Answer

To solve the question of identifying the living plant tissue whose main function is to provide buoyancy to the plant, we can follow these steps:

### Step 1: Understand the Types of Plant Tissues
Plant tissues are categorized into two main types:
1. **Meristematic Tissue** - This type of tissue is responsible for growth and can divide.
2. **Permanent Tissue** - This type of tissue generally does not divide and is differentiated into simple and complex tissues.

### Step 2: Identify Simple Permanent Tissues
Simple permanent tissues consist of one type of cell. The primary types include:
- **Parenchyma**
- **Collenchyma**
- **Sclerenchyma**

### Step 3: Analyze the Functions of Each Tissue
- **Sclerenchyma**: Composed mainly of dead cells, providing structural support but not buoyancy.
- **Collenchyma**: Provides mechanical support to growing parts of the plant but does not primarily aid in buoyancy.
- **Parenchyma**: This tissue is living and can have air-filled spaces (aerenchyma) that help in buoyancy, especially in aquatic plants.

### Step 4: Conclude the Correct Tissue
Given that the question asks for a living tissue that provides buoyancy, the correct answer is **Modified Parenchyma**. This type of parenchyma has large air cavities that help aquatic plants float.

### Final Answer
The living plant tissue whose main function is to provide buoyancy to the plant is **Modified Parenchyma**.

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