What persentage of proteins and lipids respectively are present in the membrane of human erythrocyte cell?

Options

A. 40% and 52%
B. 52% and 40%
C. 48% and 52%
D. 50% and 42%

Answer

To solve the question regarding the percentage of proteins and lipids in the membrane of human erythrocytes (red blood cells), we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Components of the Erythrocyte Membrane**:
- The membrane of human erythrocytes consists of three major components: lipids, proteins, and carbohydrates.

2. **Identify the Percentages**:
- According to the information provided, the composition of the erythrocyte membrane is as follows:
- Lipids: 40%
- Proteins: 52%
- Carbohydrates: 8%

3. **Focus on the Question**:
- The question specifically asks for the percentages of proteins and lipids. From the information gathered:
- Proteins = 52%
- Lipids = 40%

4. **Choose the Correct Option**:
- Based on the percentages identified, the correct answer to the question is:
- Proteins: 52%
- Lipids: 40%

5. **Final Answer**:
- Therefore, the answer is:
- Proteins: 52%
- Lipids: 40%