Haldane effect plays more important role in promoting carbon dioxide tranport than that of the Bhr's effect in promoting oxygen trasnport because

Options

A. oxyhaemoglobin is a stronger acid which donates hydrogen ion `(H^(+))` which in turn displace carbone dioxide from blood
B. carbaminohaemoglobin is a stronger acid which spilts into hydrogen ion `(H^(+))` and bicarbonate `(HCO_(3)^(-))`
C. carbon dioxide reacts with water to form carbonic acid that lowers the pH in tissue
D. carbon dioxide is less soluble in venous blood than in arterial blood.

Explanation

### Step-by-Step Solution

1. **Understanding the Haldane Effect**: The Haldane effect refers to the phenomenon where deoxygenated hemoglobin (hemoglobin that has released oxygen) can bind to carbon dioxide more effectively than oxygenated hemoglobin. This means that when hemoglobin releases oxygen in the tissues, it becomes more capable of picking up carbon dioxide.

2. **Role of Hemoglobin**: Hemoglobin is a protein in red blood cells that binds to both oxygen and carbon dioxide. When hemoglobin is saturated with oxygen (oxyhemoglobin), it has a reduced capacity to carry carbon dioxide. Conversely, when it releases oxygen, it can bind more carbon dioxide (forming carbaminohemoglobin).

3. **Acid-Base Balance**: The Haldane effect is linked to the acid-base balance in the blood. Oxyhemoglobin acts as a stronger acid compared to deoxygenated hemoglobin. When oxygen is released, the resulting increase in hydrogen ions (H+) promotes the release of carbon dioxide from the blood.

4. **Bohr Effect**: The Bohr effect describes how increased levels of carbon dioxide and lower pH (more acidic conditions) enhance the release of oxygen from hemoglobin. While the Bohr effect facilitates oxygen unloading, it does not directly promote carbon dioxide transport as effectively as the Haldane effect does.

5. **Carbon Dioxide Solubility**: It is important to note that carbon dioxide is less soluble in venous blood than in arterial blood. This means that the transport of carbon dioxide relies heavily on its binding to hemoglobin rather than remaining dissolved in the plasma.

6. **Conclusion**: The Haldane effect plays a more significant role in carbon dioxide transport because the release of oxygen from hemoglobin increases its ability to bind carbon dioxide. The stronger acidic nature of deoxygenated hemoglobin promotes the displacement of carbon dioxide, making the Haldane effect more crucial than the Bohr effect in this context.