Concept explainers
(a)
Interpretation: The number of carboxyl groups and amino groups present in nonpolar amino acids has to be stated.
Concept introduction: Amino acid is a compound that is composed of
(b)
Interpretation: The number of carboxyl groups and amino groups present in polar basic amino acids has to be stated.
Concept introduction: Amino acid is a compound that is composed of
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Chapter 9 Solutions
Organic And Biological Chemistry
- What functional groups are found in all amino acids? How many different amino acids are found in naturally occurring proteins?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(a) Draw the Lewis structure for the amino acid phenylalanine, showing the amino group and the carboxylic group in their un-ionized forms. (b) Draw the Lewis structure for the zwitterionic form of phenylalanine. (c) Which of these structures will be the predominant form at physiological pH?arrow_forward
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