Lateral roots originate from

Options

A. (a) Endodermal cells lying against phloem
B. (b) Cortex
C. (c) Pericycle cells lying against protoxylem
D. (d) Cork cambium

Answer

**Step-by-Step Solution:**

1. **Understanding Lateral Roots**: Lateral roots, also known as secondary roots, are roots that develop from the main root system during the secondary growth phase of a plant.

2. **Role of Auxin**: The growth of lateral roots is stimulated by a plant hormone called auxin. Auxin is a phytohormone that promotes root development.

3. **Origin of Lateral Roots**: Lateral roots originate specifically from a tissue called the pericycle. The pericycle is the outermost layer of the vascular bundle or the stele of a plant.

4. **Location of Pericycle**: The pericycle is located just inside the endodermis, which is another layer of cells in the root structure.

5. **Identifying the Correct Answer**:
- Option A states "endodermal cells lying against phloem," which is incorrect.
- Option B states "cortex," which is also incorrect.
- Option C states "pericycle cells lying against protozoa," which is correct.
- Option D states "corcambia," which is incorrect.

6. **Conclusion**: Therefore, the correct answer is option C: "pericycle cells lying against protozoa."

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