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Human Body & Health

If a patient with chronic anemia experiences a sudden increase in 2,3-bisphosphoglycerate (2,3-BPG) levels, which consequence follows regarding oxygen delivery to tissues?

A)Hemoglobin binds oxygen more tightly.
B)Oxygen release from hemoglobin decreases.
C)Hemoglobin's oxygen affinity decreases.
D)Red blood cell production increases rapidly.

💡 Explanation

Increased 2,3-BPG in red blood cells reduces hemoglobin's affinity for oxygen because it stabilizes the T (tense) state of hemoglobin, therefore oxygen is more readily released to tissues. The Bohr effect shifts the oxygen dissociation curve to the right, rather than increasing affinity, which would reduce oxygen offloading.

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