in plants lateral roots arise from

Options

A. epidermis
B. hypodermis
C. endodermis
D. pericycle.

Answer

### Step-by-Step Solution:

1. **Understanding Lateral Roots**: Lateral roots are secondary roots that extend from the primary root. They play a crucial role in the overall stability and nutrient absorption of the plant.

2. **Identifying the Origin**: To determine where lateral roots arise from, we need to look at the layers of the root structure. The options provided are epidermis, hypodermis, endodermis, and pericycle.

3. **Analyzing the Layers**:
- **Epidermis**: This is the outermost layer of the root, primarily involved in protection and absorption.
- **Hypodermis**: This layer lies beneath the epidermis and provides additional protection.
- **Endodermis**: This is a layer that regulates the flow of water and nutrients into the vascular system but does not give rise to lateral roots.
- **Pericycle**: This is the layer located just inside the endodermis and is known to give rise to lateral roots.

4. **Conclusion**: Based on the analysis, lateral roots arise from the pericycle, which is the outermost cell layer in the vascular cylinder of the root.

5. **Final Answer**: In plants, lateral roots arise from the pericycle.