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🩺 NEET🧬 Biology

Reduction in of blood will

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Reduction in of blood will
aReduce the blood supply to the brain
bDecrease the affinity of haemoglobin with oxygen
cRelease bicarbonate ions by the liver
dReduce the rate of heartbeat
✓ Correct answer: b) Decrease the affinity of haemoglobin with oxygen
ExplanationA reduction in blood pH (increased acidity) decreases the affinity of hemoglobin for oxygen.This is explained by Bohr’s effect, where an increase in H⁺ ions (lower pH) causes hemoglobin to release more oxygen, facilitating oxygen delivery to tissues.This mechanism is particularly important during high metabolic activity when carbon dioxide production increases, lowering pH.Hence, the correct answer is option B.
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