Based on the context given below, answer the following questions:
Glycine is most often used as a buffering agent in biochemical experiments. This diprotic amino acid has a pKa value of 2.4 owing to carboxyl group and 9.6 owing to amino group. Glycine can exist as a zwitterion which can exist in either protonated form\((NH^+_3 )\) or as a free base \((-NH_2)\)because of the reversible reaction:

Question

Based on the context given below, answer the following questions:
Glycine is most often used as a buffering agent in biochemical experiments. This diprotic amino acid has a pKa value of 2.4 owing to carboxyl group and 9.6 owing to amino group. Glycine can exist as a zwitterion which can exist in either protonated form\((NH^+_3 )\) or as a free base \((-NH_2)\)because of the reversible reaction:
Glycine is most often used as a buffering agent

cdquestions Admin · Accepted Answer

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The characteristic pH, at which the net electric charge is zero, achieved at

The Correct Option is B

Solution and Explanation

In 0.1 M solution of glycine at pH 9.0, what fraction of glycine has its amino group in \(-NH^+_3\)form?

The Correct Option is A

Solution and Explanation

Glycine is highly conserved amino acid because

The Correct Option is A

Solution and Explanation

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