Which statement is correct about how oxygen combines with haemoglobin?
A.
Combining all four oxygen molecules with haemoglobin does not affect the shape of haemoglobin.
B.
One oxygen molecule can combine with each haem group of the haemoglobin molecule.
C.
The first oxygen molecule to combine with haemoglobin does not affect the shape of haemoglobin.
D.
The third oxygen molecule to combine with haemoglobin makes it more difficult for the fourth oxygen molecule to combine with haemoglobin.
Exam No：9700_s24_qp_11 Year：2024 Question No：29
Answer:
B
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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