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Which of these is an amino acid with pH less than 7?

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in Biology – Class 11 by (272k points)
Which of these is an amino acid with pH less than 7?

(a) Valine

(b) Lysine

(c) Glutamic acid

(d) Histidine

The question was asked during an interview for a job.

Enquiry is from Biomolecules in section Biomolecules of Biology – Class 11

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The correct option is (c) Glutamic acid

The explanation: a pH lesser than 7 signifies that the amino acid is acidic in nature. Glutamic acid has pH less than 7, hence it is an acidic amino acid. Histidine and lysine are basic while valine is a neutral amino acid.

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