In monocot root, we observe

Options

A. polyarch, open, collateral vascular bundles
B. suberized exodermis, casparian strip, passage cell and cambium
C. suberized exodermis, polyarch and exarch xylem, large pith
D. exodermis, endarch, tetrach, closed vascular bundles

Answer

**Step-by-Step Solution:**

1. **Understanding Monocot Roots:**
- Monocot roots exhibit specific structural features that differentiate them from dicot roots. It is essential to understand these characteristics to answer the question correctly.

2. **Vascular Bundles Arrangement:**
- In monocot roots, the vascular bundles are arranged in a polyarch pattern. This means that there are multiple (more than two) xylem and phloem bundles, typically eight in total.

3. **Xylem and Phloem Characteristics:**
- The xylem in monocot roots is described as exarch, meaning that the xylem develops from the outermost part of the vascular bundle and matures inward. This is a key feature of monocot roots.

4. **Presence of Hypodermis:**
- Just beneath the epidermis, there is a layer known as the hypodermis, which consists of one or two layers of cells. These cells have suberized walls, making them impermeable to water, which helps in retaining water and nutrients within the root.

5. **Pith Structure:**
- The pith in monocot roots is composed of loosely arranged parenchyma cells and is located at the center of the root. This structure supports the root and aids in storage.

6. **Identifying the Correct Option:**
- Based on the features discussed, the correct option that describes the characteristics of monocot roots is:
- **Option C:** Subarised exodermis, exarch xylem, and large pith.

**Final Answer:**
The correct observation in monocot roots is described in **Option C**: Subarised exodermis, exarch xylem, and large pith.

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