Under normal physiological conditions in human being every 100 ml of oxygenated blood can deliver _____________ml of O2 to the tissues.
1. 10 ml
2. 2 ml
3. 5 ml
4. 4 ml
Select the favorable conditions required for the formation of oxyhemoglobin at the alveoli.
1. High pO2, high pCO2, less H+, higher temperature
2. Low pO2, low pCO2, more H+, higher temperature
3. High pO2, low pCO2, less H+, lower temperature
4. Low pO2 high pCO2 more H+, higher temperature
Identify the wrong statement with reference to transport of oxygen:
1. | Partial pressure of CO2 can interfere with O2 binding with haemoglobin. |
2. | Higher H+ concentration in alveoli favours the formation of oxyhaemoglobin. |
3. | Low pCO2 in alveoli favours the formation of oxyhaemoglobin. |
4. | Binding of oxygen with haemoglobin is mainly related to partial pressure of O2. |
1. | reduce the blood supply to the brain |
2. | decrease the affinity of hemoglobin with oxygen |
3. | lead to release of bicarbonate ions by the liver |
4. | reduce the rate of heartbeat |
Approximately seventy percent of carbon dioxide absorbed by the blood will be transported to the lungs:
1. | as bicarbonate ions |
2. | in the form of dissolved gas molecules |
3. | by binding to R.B.C |
4. | as carbamino-haemoglobin |
The majority of carbon dioxide produced by our body cells is transported to the lungs:
1. dissolved in the blood
2. as bicarbonates
3. as carbonates
4. attached to haemoglobin