During differentiation, the cells undergo structural changes in their
A) cell wall B) genetic material C) protoplasm D) unit membranes

Options

A. A, B
B. C, D
C. A, C
D. B,D

Answer

To solve the question, we need to analyze each option provided and determine where structural changes occur during the process of differentiation in cells.

### Step-by-Step Solution:

1. **Understanding Differentiation**: Differentiation is the process by which cells become specialized in structure and function. This involves changes in various cellular components.

2. **Analyzing Option A - Cell Wall**:
- During differentiation, plant cells often undergo changes in their cell walls. The composition and structure of the cell wall can change to suit the specific function of the cell type that is being formed.
- **Conclusion**: This option is correct.

3. **Analyzing Option B - Genetic Material**:
- Genetic material, which includes DNA and RNA, remains largely unchanged during differentiation. While gene expression may change, the actual structure of the genetic material does not undergo structural changes.
- **Conclusion**: This option is incorrect.

4. **Analyzing Option C - Protoplasm**:
- Protoplasm includes the cytoplasm, nucleus, and organelles. During differentiation, the composition and organization of the protoplasm can change significantly as cells become specialized.
- **Conclusion**: This option is correct.

5. **Analyzing Option D - Unit Membranes**:
- Unit membranes, which refer to the membranes surrounding organelles and the cell itself, do not undergo significant structural changes during differentiation. The basic structure remains the same.
- **Conclusion**: This option is incorrect.

6. **Final Evaluation of Options**:
- From the analysis, we find that structural changes occur in the cell wall (A) and protoplasm (C) during differentiation. Therefore, the correct answer is A and C.

### Final Answer:
The cells undergo structural changes in their **A) cell wall** and **C) protoplasm** during differentiation.

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