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NTA Abhyas NEET2020ChemistryBiomoleculesPractice

The elementary sulphur is present in

Options

  1. AValine, lysine and cystine
  2. BTryptophan, Glutamic acid, Aspartic acid
  3. CCitrulline, Methionine and Glutamic acid
  4. DHomo-cysteine, Cystine and Methionine

Correct answer

D. Homo-cysteine, Cystine and Methionine

Step-by-step solution

Amino acids are amphoteric in nature both acidic and alkyl group present. Sulphur containing amino acids are cysteine, methionine and cystine is non-protein amino acids

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