Endodermis is component of

Options

A. Extrastelar tissue system
B. Intrastelar tissue system
C. Epidermal tissue system
D. Vascular tissue system.

Answer

**Step-by-Step Solution:**

1. **Understanding Plant Tissue Systems**:
- Plants have different types of tissue systems which can be classified into three main categories: epidermal tissue system, vascular tissue system, and ground tissue system.

2. **Identifying the Components of Each Tissue System**:
- The **epidermal tissue system** includes the epidermis, epidermal appendages (like trichomes and root hairs), and the stomatal apparatus.
- The **vascular tissue system** consists of xylem and phloem, which are responsible for the transport of water, nutrients, and food throughout the plant.
- The **ground tissue system** includes tissues such as cortex, pith, pericycle, and medullary rays.

3. **Focusing on Endodermis**:
- The endodermis is a specific layer of cells found in the roots and stems of plants. It is primarily involved in regulating the flow of water and nutrients into the vascular system.

4. **Locating Endodermis in Plant Structure**:
- The endodermis is located just inside the cortex and surrounds the vascular tissue. It acts as a selective barrier between the cortex and the vascular tissues.

5. **Defining the Steel**:
- The term "steel" refers to all the tissues that lie inside the endodermis. Therefore, the endodermis itself is not included in the steel but is a boundary that defines it.

6. **Conclusion**:
- Based on the definitions and locations of the endodermis, we conclude that the endodermis is a component of the **extrastellar tissue system**, which encompasses all the tissues outside the vascular tissue.

**Final Answer**: The endodermis is a component of the **extrastellar tissue system**.

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