The Biuret test is not given by:

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The Biuret test is a chemical test used to detect the presence of peptide bonds ($CONH$ linkage).Since carbohydrates do not contain peptide bonds,

Vedclass · Accepted Answer

Carbohydrates

Vedclass · Answer

(A) The Biuret test is a chemical test used to detect the presence of peptide bonds ($CONH$ linkage).Since carbohydrates do not contain peptide bonds,they do not give a positive Biuret test.Polypeptides and proteins contain multiple peptide bonds and thus give a positive test.Urea $(NH_2CONH_2)$ also gives a positive Biuret test because it contains a structure similar to the biuret molecule $(H_2N-CO-NH-CO-NH_2)$.

Similar Questions

Which from the following is an essential amino acid?

Find the isoelectric point $(pI)$ of the given amino acid.
$CH_3-CH(NH_3^+)-CO_2H, \ pK_a = 2.2, \ pK_b = 4.4$

Glycylalanine is a dipeptide of which amino acids?

Assertion : Proteins are made up of $\alpha-$ amino acids.
Reason : During denaturation,secondary and tertiary structures of proteins are destroyed.

Which of the following is not an essential amino acid?

Vedclass Test Series

Exam Paper Generator

Online Exam Module