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Biomolecules

Short Answer Type

71.

In the dipeptide Glycylalanine( Gly-ala), which amino acid has a free amino group and which has a free carboxyl group?

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One Word Answers

72.

Name the derivative of a dipeptide used as a sugar substitute.

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Short Answer Type

73.

Give an example of irreversible protein denaturation.

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74. The sugar which we eat in our everyday life is converted into glucose and fructose. Name the enzyme which facilitates this chemical reaction.

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75.

What is the importance of amino acids to us?

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76.
What do you mean by peptide bond?

Peptide linkage is an amide formed between -COOH group and -NH₂ group. The reaction of between two molecules of similar or different amino acids, proceeds through the combination of the amino group of one molecule with the carboxyl group of the other. This results in the elimination of a water molecule and formation of a peptide bond -CO-NH-.