Vacular bundles are surrounded on all sides by a sclerenchymatous sheath in

Options

A. dicot stem
B. dicto root
C. monocot stem
D. monocot root

Answer

**Step-by-Step Solution:**

1. **Understanding Vascular Bundles**: Vascular bundles are part of the plant's transport system, primarily found in the stems. They consist of xylem and phloem, which are responsible for the transport of water, nutrients, and food throughout the plant.

2. **Identifying Sclerenchymatous Sheath**: A sclerenchymatous sheath is made up of dead cells that have thick secondary walls. This type of tissue provides support and protection to the plant.

3. **Location of Vascular Bundles**: Vascular bundles are located in different parts of the plant, including stems and roots. However, the arrangement and surrounding tissues can vary between different types of plants.

4. **Analyzing Options**: The question asks in which type of plant the vascular bundles are surrounded on all sides by a sclerenchymatous sheath.
- In dicot stems, vascular bundles are typically surrounded by collenchyma, which is a living tissue that provides flexibility.
- In monocot stems, vascular bundles are surrounded by sclerenchyma, providing a protective and supportive sheath.

5. **Conclusion**: Based on the analysis, the correct answer is that vascular bundles are surrounded on all sides by a sclerenchymatous sheath in monocot stems.

**Final Answer**: Monocot stem.

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