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Peptide linkage in protein is tested by...

Peptide linkage in protein is tested by

A

Millons test

B

Hydrazin test

C

Carbylamine test

D

Biuret test

Text Solution

Verified by Experts

The correct Answer is:
D
Protein + NaOH + `CuSO_(4) + underset("test")overset("Biuret")to ` Purple colour
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Peptide linkage is

Peptide linkage is present in

Protein are nitrogeneous organic compound having very high molecular mass. They are polyamides formed from alpha -amino acid. The bond formed between two amino acid is called peptide bond -underset(O) underset(||)C-NH- . The product obtainded by this peptide bond formation are called peptide and they may be divided as di, tri ,tetra, penta peptide. Consider following statements concerning protein 1. All amino acids which are constituents of proteins of alpha -amino acid. 2. alpha -amino acids are all optically active and have L-configuration 3. An especially favourable conformation for the peptide linkage in protein is the alpha -helix arrangement. 4. alpha -amino acids are connected by ester linkage. Which of the following statement are correct?

Test used to identify peptide linkage in protein is:

Proteins || Naming and structure OF amino acids || Peptide linkage || Types OF proteins - globular and fibrous proteins || Primary,Secondary,3' and 4' proteins