The best material for the study of structure of cell membrane is

Options

A. RBC of human
B. liver cell
C. kidney cell
D. muscle cell.

Explanation

To determine the best material for the study of the structure of the cell membrane, we need to analyze the options provided and understand the characteristics of each material in relation to cell membranes.

### Step-by-Step Solution:

1. **Understanding Cell Membrane Structure**:
- The cell membrane, also known as the plasma membrane, is a crucial component of the cell that separates the interior of the cell from the external environment. It is primarily composed of a phospholipid bilayer with embedded proteins.

2. **Identifying Suitable Materials for Study**:
- When studying the structure of the cell membrane, it is important to choose a material that is relatively simple and free from complications that could arise from other cellular components.

3. **Evaluating Red Blood Cells (RBCs)**:
- Red blood cells (RBCs) are an excellent choice for studying cell membranes because they lack a nucleus and most organelles. This simplicity allows researchers to focus on the membrane itself without interference from other cellular structures.

4. **Conclusion**:
- Based on the characteristics of RBCs, they are the best material for studying the structure of the cell membrane. The absence of a nucleus and organelles makes it easier to isolate and analyze the membrane.

5. **Final Answer**:
- The best material for the study of the structure of the cell membrane is **RBCs (Red Blood Cells)**.