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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EP BASIC CHEMISTRY-STANDALONE ACCESS
- Which of the following describes the primary structure of proteins? a. The collective shape assumed by all of the chains in a protein containing multiple chains. b. The folding of an individual protein molecule. c. The regular repeated shape of the protein molecules backbone. d. The sequence of amino acids bonded together by peptide bonds.arrow_forwardWhich of the following are true concerning the chemical bond that forms between the carboxyl (RCOOH) group of one amino acid and the amino (RCNH2) group of another? a.The bond is called a peptide bond. b.It is formed by inserting a water molecule between them. c.It is formed by a dehydration reaction. d.A polypeptide has more of these bonds than a protein.arrow_forwardWhat functional groups are found in all amino acids? How many different amino acids are found in naturally occurring proteins?arrow_forward
- To which family of mirror-image isomers do nearly all naturally occurring amino acids belong?arrow_forwardWhat characteristics indicate that amino acids exist as zwitterions?arrow_forwardFill in the blanks in the following statements: aThe order of the amino acids in a protein is the ______ structure of that protein. The _______ of the backbone chain of a protein is the secondary structure of that protein. The tertiary structure of a protein describes the ______ of the secondary structure. b Hydrogen bonding between the oxygen atoms of carbonyl groups and the hydrogen atoms of amide groups in the same protein chain gives the secondary structure, called the ______. c Hydrogen bonding between the oxygen atoms of carbonyl groups and the hydrogen atoms of amide groups in the adjacent protein chain gives the secondary structure, called the ______.arrow_forward
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