The affinity of oxygen for hemoglobin is:
Hello, is the answer A?
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Yes, it is A, I think the phrasing is a bit ambiguous though
Yeah I was confused with B at first, but this Q seems to mean that the concentration of oxygen (O2) in the surrounding environment is already high enough so hemoglobin has a higher affinity for oxygen. So, for instance, hemoglobin is more likely to bind with oxygen molecules in the lungs, where the oxygen concentration is high, and carry oxygen to tissues where it is needed for cellular respiration.
Conversely, when the concentration of oxygen in the environment is low, such as in peripheral tissues where oxygen is being released from hemoglobin to supply cells, hemoglobin’s affinity for oxygen decreases. This allows oxygen to be more readily released from hemoglobin and delivered to cells for metabolism.
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