BIOCHEMISTRY
PH
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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buffers
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enzymes
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precipitates
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esters
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Detailed explanation-1: -Buffering system of blood When any acidic substance enters the bloodstream, the bicarbonate ions neutralize the hydronium ions forming carbonic acid and water. Carbonic acid is already a component of the buffering system of blood. Thus hydronium ions are removed, preventing the pH of blood from becoming acidic.
Detailed explanation-2: -The correct answer: The option which is not an example of a buffer system that helps maintain the pH of blood is A) bicarbonate.
Detailed explanation-3: -Blood is an example of basic buffer.
Detailed explanation-4: -As a buffer, hemoglobin counteracts any rise in blood pH by releasing H+ ions from a number of atomic sites throughout the molecule. Similarly, a number of H+ ions are bound to, or are ‘taken up’ by the molecule, acting to counteract a decrease in pH.