The cells of region of meristematic activity of root are

Options

A. Large, thick walled and with dense protoplasm
B. Small,thin walled and with little protoplasm
C. Very small, thin walled and with dense protoplasm
D. Very large thick walled and with little protoplasm

Answer

To answer the question regarding the cells of the region of meristematic activity of the root, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Meristematic Tissue**:
- Meristematic tissue is a type of plant tissue that consists of undifferentiated cells capable of division. It is responsible for the growth of the plant.

2. **Location of Meristematic Activity in Roots**:
- In roots, the region of meristematic activity is located just above the root cap. This area is crucial for the growth of the root.

3. **Characteristics of Meristematic Cells**:
- The cells in this region are characterized by being small in size. They are also thin-walled, which allows for easier cell division and growth.
- These cells contain dense protoplasm, which is essential for their metabolic activities and division.

4. **Comparing the Options**:
- **Option A**: Large, thick-walled, and with dense protoplasm - Incorrect, as meristematic cells are not large or thick-walled.
- **Option B**: Small, thin-walled, and with little protoplasm - Incorrect, as they have dense protoplasm.
- **Option C**: Very small, thin-walled, and with dense protoplasm - Correct, as this accurately describes the meristematic cells.
- **Option D**: Very large, thick-walled, and with little protoplasm - Incorrect, as this does not describe meristematic cells.

5. **Conclusion**:
- The correct answer is **Option C: very small, thin-walled, and with dense protoplasm**.