Xis a living tissue that provides mechanical support, tensile strength and elasticity in young dicotyledonous stem. X is _______

Options

A. Parenchyma
B. Collenchyma
C. Lateral meristem
D. Sclerenchyma

Answer

To solve the question, we need to identify the living tissue in plants that provides mechanical support, tensile strength, and elasticity in young dicotyledonous stems. Let's break this down step by step:

### Step 1: Understand the Characteristics of the Tissue
We are looking for a living tissue that provides:
- Mechanical support
- Tensile strength
- Elasticity

### Step 2: Identify Types of Plant Tissues
Plant tissues are categorized into two main types:
1. **Meristematic Tissue**: Responsible for growth and cell division.
2. **Permanent Tissue**: Specialized for specific functions and does not divide.

### Step 3: Classify Permanent Tissues
Permanent tissues can be further divided into:
- **Simple Permanent Tissue**: Made up of similar types of cells.
- **Complex Permanent Tissue**: Made up of different types of cells (e.g., xylem and phloem).

### Step 4: Focus on Simple Permanent Tissue
Simple permanent tissues are classified into three types:
1. **Parenchyma**: Primarily involved in storage.
2. **Collenchyma**: Provides mechanical support and elasticity; it is a living tissue.
3. **Sclerenchyma**: Provides strength but is made of dead cells and is rigid.

### Step 5: Analyze the Functions of Each Tissue
- **Parenchyma**: Stores food, not relevant to our question.
- **Collenchyma**: Provides mechanical support, tensile strength, and elasticity; it is living.
- **Sclerenchyma**: Provides mechanical support but is dead, hence lacks elasticity.

### Step 6: Conclusion
Based on the characteristics and functions analyzed, the tissue that fits the description of providing mechanical support, tensile strength, and elasticity in young dicotyledonous stems is **Collenchyma**.

### Final Answer
X is **Collenchyma**.

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