Percentage of haemoglobin in RBCs is

Options

A. 0.1
B. 0.2
C. 0.34
D. 0.48

Answer

### Step-by-Step Solution:

1. **Understanding Hemoglobin**: Hemoglobin is an iron-containing protein found in red blood cells (RBCs) that is essential for transporting oxygen throughout the body.

2. **Structure of Hemoglobin**: Each hemoglobin molecule is composed of four subunits, specifically two alpha subunits and two beta subunits. This structure allows hemoglobin to effectively bind oxygen.

3. **Heme Group**: Each subunit of hemoglobin contains a central heme group that has an iron atom. This iron is crucial because it binds to oxygen molecules.

4. **Oxygen Binding Capacity**: A single hemoglobin molecule can bind to four oxygen molecules due to its four heme groups.

5. **Percentage of Hemoglobin in RBCs**: The percentage of hemoglobin in red blood cells is approximately 34%. This can also be expressed as 0.34 when converted to decimal form.

6. **Final Answer**: Therefore, the percentage of hemoglobin in RBCs is 0.34.