Advertisements
Advertisements
Question
What is the effect of pCO2 on oxygen transport?
Solution
- pCO2 plays an important role in the transportation of oxygen. At the alveolus, the low pCO2 and high pO2 favour the formation of haemoglobin.
- At the tissues, high pCO2 and low pO2 favour the dissociation of oxygen from haemoglobin. Hence, the affinity of haemoglobin for oxygen is enhanced by the decrease of pCO2 in the blood.
- Therefore, oxygen is transported in blood as oxyhaemoglobin and oxygen dissociates from it at the tissues.
APPEARS IN
RELATED QUESTIONS
Can you suggest any reason for the sigmoidal pattern of the oxygen dissociation curve?"
Have you heard about hypoxia? Try to gather information about it, and discuss with your friends.
A sigmoid curve is obtained when the percentage saturation of haemoglobin (Hb) with oxygen is plotted against the \[\ce{PO2}\] as indicated below:
The given figure shows diagrammatic representation of exchange of gases at the alveolus and the body tissues with blood and transport of oxygen and carbon dioxide. Identity the blood vessels A to D.
Oxygen carrying capacity of blood is ______.
Select the favourable conditions required for the formation of oxyhaemoglobin at the alveoli.
It is known that exposure to carbon monoxide is harmful to animals because ______.
Mark the incorrect statement in context to O2 binding to Hb
The oxygen-haemoglobin dissociation curve will show a right shift in case of ______.
What is the amount of O2 supplied to tissues through every 100 ml. of oxygenated blood under normal physiological conditions?
Explain the transport of O2 and CO2 between alveoli and tissue with diagram.
