Teaching MPPSC Assistant Professor Mock Test Series 2025 Life Sciences System Physiology Animal Respiratory system
The CO2 dissociation curves of oxygenated and deoxygenated blood are given along with dissolved CO2 below:
Following are the statements deduced from the curves above and/or based on the know- ledge about CO2 transport, which may or may not be correct:
A. The deoxygenated haemoglobin has greater affinity for CO2 than oxygenated haemo-globin.
B. The deoxygenated haemoglobin does not bind with free H+ lons released during the formation of \(\rm HCO_3^-\) from CO2.
C. The haemoglobin saturation with O2 has no effect on CO2 dissociation curve.
D. O2 and CO2 bind to haemoglobin at different sites.
Which one of the following options represents a combination of all correct statements?
1
A and B
2
B and C
3
C and D
4
A and D