Which test is used to detect proteins?
Correct answer: C. Biuret test
- A. Benedict's test
- B. Iodine test
- C. Biuret test
- D. Emulsion test
Explanation
Biuret test uses NaOH and CuSO4 to detect peptide bonds, giving a purple/violet color with proteins.
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About Proteins
Proteins are polymers of amino acids joined by peptide bonds, and their function depends on primary, secondary, tertiary and quaternary structure. The topic covers fibrous and globular proteins, enzymes, antibodies, hormones and transport proteins, as well as denaturation by heat or extreme pH.
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