A sample of adult haemoglobin was tested to determine its saturation with oxygen. All other variables were standardised. At a partial pressure of 0 kPa , the saturation was $$\(0 \%\)$$. The saturation reached $$\(97 \%\)$$ at a partial pressure of 14 kPa . Which row shows the possible percentage saturation of haemoglobin at some intermediate partial pressures?
A.
B.
C.
D.
Exam No：9700_s25_qp_13 Year：2025 Question No：33
Answer:
C
Knowledge points:
8.2.1.1 haemoglobin
8.2.1.2 carbonic anhydrase
8.2.1.3 the formation of haemoglobinic acid
8.2.1.4 the formation of carbaminohaemoglobin
8.2.2 describe the chloride shift and explain the importance of the chloride shift
8.2.3 describe the role of plasma in the transport of carbon dioxide
8.2.4 describe and explain the oxygen dissociation curve of adult haemoglobin
8.2.5 explain the importance of the oxygen dissociation curve at partial pressures of oxygen in the lungs and in respiring tissues
8.2.6 describe the Bohr shift and explain the importance of the Bohr shift
Solution:
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