
Concept explainers
(a)
Interpretation : The type of protein that describes the given statement “In the amino acid, the interaction of R groups results in formation of disulphide bonds or ionic bonds” needs to the determined.
Concept Introduction : Proteins are
They polymerise by peptide linkage to form dipeptide, oligopeptide and polypeptide molecules. Each peptide bond formation is a condensation reaction that occurs with the elimination of water molecule.
(b)
Interpretation : The type of protein that describes the given statement “In the polypeptide chains the amino acids are joined by peptide bonds”needs to the determined.
Concept Introduction : Proteins are polymeric biomolecules which are formed by the polymerisation of amino acids. Amino acids are the organic molecules with
They polymerise by peptide linkage to form dipeptide, oligopeptide and polypeptide molecules. Each peptide bond formation is a condensation reaction that occurs with the elimination of water molecule.
(c)
Interpretation : The type of protein that describes the given statement “In the beta-pleated sheet the polypeptides have hydrogen bonding interactions with the polypeptides in adjacent chains” needs to the determined.
Concept Introduction : Proteins are polymeric biomolecules which are formed by the polymerisation of amino acids. Amino acids are the organic molecules with
They polymerise by peptide linkage to form dipeptide, oligopeptide and polypeptide molecules. Each peptide bond formation is a condensation reaction that occurs with the elimination of water molecule.

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Chapter 18 Solutions
Basic Chemistry
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