Hypodermis of dicot stem is made up of
(a) Parenchymatous cells
(b) Collenchymatous cells
(c) Sclerenchymatous cells
(d) Prosenchymatous cells

Options

A. Parenchymatous cells
B. Collenchymatous cells
C. Sclerenchymatous cells
D. Prosenchymatous cells

Answer

To answer the question regarding the composition of the hypodermis in a dicot stem, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of the Dicot Stem**:
- The dicot stem has several layers, including the epidermis, hypodermis, cortex, and vascular bundles. The hypodermis is the layer located just beneath the epidermis.

2. **Identify the Composition of the Hypodermis**:
- The hypodermis is made up of a specific type of cells. In dicot stems, it is primarily composed of collenchyma cells.

3. **Characteristics of Collenchyma Cells**:
- Collenchyma cells are characterized by their thickened cell walls, which provide structural support. They have angular thickenings that help in mechanical support, especially in young stems and petioles.

4. **Eliminate Other Options**:
- Parenchymatous cells (option a) are generally involved in storage and photosynthesis, not structural support.
- Sclerenchymatous cells (option c) provide support but are usually found in older tissues and are dead at maturity.
- Prosenchymatous cells (option d) are not a standard classification in plant anatomy.

5. **Conclusion**:
- Based on the above points, the correct answer is (b) Collenchymatous cells.

### Final Answer:
The hypodermis of a dicot stem is made up of (b) Collenchymatous cells.

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