Concept explainers
Interpretation:
Peptide bond in ball and stick model below has to be determined. Also, name of amino acids and name of dipeptide in three-letter abbreviation has to be determined.
Concept Introduction:
Amino acids are the
Peptides are compounds that consist of amide linkage and formed when carboxylic acid group of one unit of amino acid reacts with amino group of another amino acid. The amide linkage is also therefore known as peptide linkage. Peptide linkage contains two terminals. One is
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Principles of General, Organic, Biological Chemistry
- Consider the tripeptide leucylvalyltryptophan. a. Specify its structure using three-letter symbols for the amino acids. b. How many peptide bonds are present within the peptide? c. Which of the amino acid residues has the largest R group? d. Which of the amino acid residues, if any, has a basic side chain?arrow_forwardWhat characteristics indicate that amino acids exist as zwitterions?arrow_forwardWhat functional groups are present in all -amino acids?arrow_forward
- 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_forwardTo which family of mirror-image isomers do nearly all naturally occurring amino acids belong?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_forward
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