- 1(current)
Q. No.The amount of carbon dioxide that can diffuse through the diffusion membrane is much higher compared to that of oxygen because:
| 1. | the gradient across the membrane is much higher for carbon dioxide |
| 2. | carbon dioxide is more toxic than oxygen |
| 3. | solubility of carbon dioxide is much higher than that of oxygen |
| 4. | carbon dioxide has more affinity for hemoglobin than that of oxygen |
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The binding of oxygen with hemoglobin is primarily related to:
| 1. | Partial pressure of carbon dioxide |
| 2. | Partial pressure of oxygen |
| 3. | H+ ion concentration in body fluids |
| 4. | Presence of 2,3-DPG in erythrocytes |
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Under normal physiological conditions, what amount of oxygen is delivered to the tissues?
| 1. 4 ml | 2. 5 ml |
| 3. 15 ml | 4. 20 ml |
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What amount of carbon dioxide is delivered by every 100 ml of deoxygenated blood at the alveoli under normal physiological conditions?
| 1. 4 ml | 2. 5 ml |
| 3. 15 ml | 4. 20 ml |
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The oxy-hemoglobin dissociation curve shifts to the right in all the following conditions except:
| 1. Presence of 2,3-DPG | 2. Increased temperature |
| 3. Increased pH | 4. Increased carbon dioxide |
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The binding of carbon dioxide to hemoglobin:
I. is related to the partial pressure of carbon dioxide
II. is affected by the partial pressure of oxygen
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
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The formation of oxy-hemoglobin at the alveoli is favored by all the following except:
| 1. High pO2 | 2. Low pCO2 |
| 3. Lower H+ ion concentration | 4. Higher temperature |
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The major mode of transport of carbon dioxide in human body is:
| 1. | in combination with hemoglobin |
| 2. | in dissolved state in plasma |
| 3. | as carboxyhemoglobin |
| 4. | as bicarbonate |
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- 1(current)
Q. No.
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