The membrane of RBC of human protein lipid content respectively in the ratio of

Options

A. 40 percent ans 52 percent
B. 52 percent and 40 percent
C. 60 percent and 40 percent
D. 70 percent and 30 percent

Answer

To determine the ratio of protein to lipid content in the membrane of human red blood cells (RBCs), we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Components of RBC Membrane**:
- The RBC membrane is primarily made up of three components: lipids, proteins, and carbohydrates.

2. **Identify the Percentage Composition**:
- According to the information provided, the lipid content in the RBC membrane is approximately 40%.
- The protein content is approximately 52%.
- The remaining percentage (which is 8%) is made up of carbohydrates.

3. **Establish the Ratio**:
- To find the ratio of protein to lipid, we take the protein percentage (52%) and the lipid percentage (40%).
- The ratio of protein to lipid can be expressed as:
\[ \text{Ratio of Protein to Lipid} = \frac{\text{Protein}}{\text{Lipid}} = \frac{52}{40} \]

4. **Simplify the Ratio**:
- To simplify the ratio \( \frac{52}{40} \), we can divide both numbers by their greatest common divisor (GCD), which is 4:
\[ \frac{52 \div 4}{40 \div 4} = \frac{13}{10} \]
- Thus, the simplified ratio of protein to lipid in the RBC membrane is 13:10.

5. **Choose the Correct Option**:
- Based on the options provided in the question, we can see that the correct answer corresponds to the protein and lipid percentages of 52% and 40%, respectively.

### Final Answer:
The ratio of protein to lipid content in the membrane of human RBCs is 13:10, with protein making up 52% and lipid making up 40%.

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