Cell of maturation phase show

Options

A. Thickening of cell walls
B. Protoplasmic modification
C. Both (A) and (B)
D. None of these

Answer

To solve the question regarding what the cells of the maturation phase show, we will analyze the characteristics of the three growth phases: meristematic, elongation, and maturation.

### Step-by-Step Solution:

1. **Understanding Growth Phases**:
- There are three main phases of plant cell growth: meristematic, elongation, and maturation.

2. **Meristematic Phase**:
- In the meristematic phase, cells are actively dividing.
- These cells have a primary cell wall that is thin.

3. **Elongation Phase**:
- During the elongation phase, cells increase in size.
- This phase involves the deposition of new cell walls, leading to cell enlargement.

4. **Maturation Phase**:
- In the maturation phase, cells reach their maximum size.
- This phase is characterized by two significant changes:
- **Thickening of Cell Walls**: The cell walls become thicker.
- **Protoplasmic Modification**: The internal contents of the cell (protoplasm) undergo modifications to fulfill specific functions.

5. **Conclusion**:
- Since the maturation phase involves both thickening of cell walls and protoplasmic modification, the correct answer to the question is "both A and B".

### Final Answer:
The cells of the maturation phase show thickening of cell walls and protoplasmic modification. Therefore, the correct option is **both A and B**.

---