The amount of oxygen which can be carried by one gm of haemoglobin is

Options

A. 4.3 ml
B. 3.3 ml
C. 2.3 ml
D. 1.3 ml

Answer

To determine the amount of oxygen that can be carried by one gram of hemoglobin, we can follow these steps:

### Step-by-Step Solution:

1. **Understand Hemoglobin Function**: Hemoglobin is a protein in red blood cells that binds to oxygen. Each hemoglobin molecule can carry up to four molecules of oxygen.

2. **Know the Oxygen Carrying Capacity**: It is established that 1 gram of hemoglobin can carry approximately 1.36 mL of oxygen.

3. **Calculate for 100 mL of Blood**: In a healthy individual, there is about 15 grams of hemoglobin in 100 mL of blood. Therefore, the total oxygen capacity of 100 mL of blood can be calculated as:
\[ 15 \text{ grams} \times 1.36 \text{ mL/g} = 20.4 \text{ mL of oxygen} \]

4. **Identify the Correct Answer**: Since the question specifically asks for the amount of oxygen carried by one gram of hemoglobin, we can conclude that the answer is 1.36 mL of oxygen.

5. **Select the Correct Option**: Among the provided options (A: 4.3 mL, B: 3.3 mL, C: 2.3 mL, D: 1.3 mL), the closest and correct answer is option D: 1.3 mL.

### Final Answer:
The amount of oxygen which can be carried by one gram of hemoglobin is **1.36 mL** (option D).

---