NEET 2016 Biology question

Reduction in pH of blood will:

(1)Reduce the rate of heart beat
(2)Reduce the blood supply to the brain
(3)Decrease the affinity of hemoglobin with oxygenCorrect
(4)Release bicarbonate ions by the liver

Answer: (3)

Solution

A fall in blood pH (rise in H+ and pCO) shifts the oxygen-haemoglobin dissociation curve to the right (Bohr effect): the affinity of haemoglobin for oxygen decreases so that oxygen is released more readily to the tissues. Hence option (3). A fall in pH stimulates the

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Question ID VK-091983