Epiblema of roots is equivalent to

Options

A. Option1 Pericycle
B. Option2 Endodermis
C. Option3 Epidermis
D. Option4 Stele

Answer

**Step-by-Step Solution:**

1. **Understanding Epiblema**: The epiblema is the outermost layer of the root. It serves as a protective layer for the root and is involved in the absorption of water and nutrients.

2. **Identifying Equivalent Structures**: The question asks for the equivalent structure to epiblema in other plant parts. In plants, the outermost layer of stems and leaves is known as the epidermis.

3. **Origin from Protoderm**: Both epiblema and epidermis originate from the protoderm, which is the outermost layer of the primary meristem in plants. This indicates that they share a common developmental origin.

4. **Functions of Epiblema and Epidermis**: The epidermis in stems may have a waxy cuticle to reduce water loss, while the epiblema in roots often develops root hairs that increase surface area for water absorption.

5. **Eliminating Other Options**:
- **Pericycle**: This is a layer found just inside the endodermis and is not equivalent to epiblema.
- **Endodermis**: This layer is involved in regulating the flow of water and nutrients into the vascular system and is not the same as epiblema.
- **Stele**: This refers to the central vascular tissue in roots and stems, which is also not equivalent to epiblema.

6. **Conclusion**: Based on the above analysis, the epiblema of roots is equivalent to the epidermis of stems.

**Final Answer**: The epiblema of roots is equivalent to the epidermis.

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