Collenchyma is present in

Options

A. Dermal tissue system
B. Stelar ground tissue system
C. Extra-stelar ground tissue system
D. Vascular tissue system

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks where collenchyma is present among the given tissue systems in plants.

2. **Identifying Tissue Systems**: There are three major tissue systems in plants:
- Dermal Tissue System: This is the outer protective layer of the plant.
- Vascular Tissue System: This includes xylem and phloem, responsible for the conduction of water, nutrients, and food.
- Ground Tissue System: This is the fundamental tissue that makes up most of the plant body.

3. **Analyzing the Options**:
- **Option A: Dermal Tissue System**: This system is primarily for protection and does not contain collenchyma.
- **Option B: Stela Ground Tissues**: This refers to the central part of the plant where vascular tissues are located, and collenchyma is not present here.
- **Option C: Extra Stela Ground Tissues**: This is also known as the cortex, and it includes the hypodermis where collenchyma is found.
- **Option D: Vascular Tissues**: This consists of xylem and phloem, which do not contain collenchyma.

4. **Conclusion**: Based on the analysis, collenchyma is present in the extra stela ground tissue system, specifically in the hypodermis.

5. **Final Answer**: The correct answer is **Option C: Extra Stela Ground Tissues**.

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