Some textbooks assert that histidine can provide buffering capacity at the physiological pH of 7.4. a) Is...

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Chemistry

Some textbooks assert that histidine can provide bufferingcapacity at the physiological pH of 7.4.
a) Is this assertion correct?
b) What are the unprotonated (base) and protonated (acid) formsof histidine that would contribute to the buffering?
c) Is there another amino acid that could potentially providebuffering at physiological pH? If so, which one and what are theunprotonated and protonated forms of this amino acid that wouldocntribute to the buffering?

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a Yes histidine can provide buffering capacity at thephysiological pH of 74 because histine has a net positive chargeunder physiological conditions around pH 74 most of thehistidine under physiological conditions is unchargedb The ability of a compound to act as a buffer at a given pH isdetermined by how readily it will accept and donate See Answer

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