Concept explainers
Interpretation:
The amino acids in the given hexapeptide should be identified.
Concept introduction:
Amino acids are the molecules containing an
Carbon, hydrogen, oxygen and nitrogen are the key elements in amino acid.
General structure of an amino acid can be drawn as follows,
The amino acids are distinguished from one another by their R group also known as a side chain.
Some amino acids are listed below,
Peptide is a short
Peptide bonds are formed by a condensation reaction of carboxylic group of an amino acid and amino group of another amino acid with the removal of water molecule.
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Check out a sample textbook solutionChapter 23 Solutions
General Chemistry: Atoms First
- Which 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_forwardTo which family of mirror-image isomers do nearly all naturally occurring amino acids belong?arrow_forwardIn what way is the structure of glycine different from that of the other 19 common amino acids?arrow_forward
- What special role does the amino acid cysteine have in the peptides vasopressin and oxytocin?arrow_forwardFor the tripeptide SerArgIle which amino acid residues a. are hydrophilic b. are hydrophobic c. possess polar neutral R groups d. participate in two amide linkagesarrow_forward(a) How many tripeptides can be made from glycine, alanine, and leucine, using each amino acid only once per tripeptide? (b) Write the structural formulas of these tripeptides and name them in the shorthand abbreviation used for showing amino acid sequences.arrow_forward
- What functional groups are found in all amino acids? How many different amino acids are found in naturally occurring proteins?arrow_forwardFor the tripeptide AlaValGly which amino acid residues, if any, a. are hydrophilic b. are hydrophobic c. possess nonpolar R groups d. participate in two amide linkagesarrow_forward
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