Concept explainers
(a)
Interpretation: The classification of the given standard amino acid as nonpolar, polar neutral, polar acidic, polar basic has to be stated.
Concept introduction: The amino acid that has one
The amino acid that has one amine group, one carboxyl group and a side chain which is polar but neutral is called polar neutral amino acid.
The amino acid that has one amine group, one carboxyl group attached to the
The amino acid that has one amine group, one carboxyl group attached to the
(b)
Interpretation: The classification of the given standard amino acid as nonpolar, polar neutral, polar acidic, polar basic has to be stated.
Concept introduction: The amino acid that has one amine group, one carboxyl group and nonpolar side chain is called non-polar amino acid.
The amino acid that has one amine group, one carboxyl group and a side chain which is polar but neutral is called polar neutral amino acid.
The amino acid that has one amine group, one carboxyl group attached to the
The amino acid that has one amine group, one carboxyl group attached to the
(c)
Interpretation: The classification of the given standard amino acid as nonpolar, polar neutral, polar acidic, polar basic has to be stated.
Concept introduction: The amino acid that has one amine group, one carboxyl group and nonpolar side chain is called non-polar amino acid.
The amino acid that has one amine group, one carboxyl group and a side chain which is polar but neutral is called polar neutral amino acid.
The amino acid that has one amine group, one carboxyl group attached to the
The amino acid that has one amine group, one carboxyl group attached to the
(d)
Interpretation: The classification of the given standard amino acid as nonpolar, polar neutral, polar acidic, polar basic has to be stated.
Concept introduction: The amino acid that has one amine group, one carboxyl group and nonpolar side chain is called non-polar amino acid.
The amino acid that has one amine group, one carboxyl group and a side chain which is polar but neutral is called polar neutral amino acid.
The amino acid that has one amine group, one carboxyl group attached to the
The amino acid that has one amine group, one carboxyl group attached to the
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Organic And Biological Chemistry
- With the help of Table 20-1, identify the amino acids contained in each of the following tripeptides.arrow_forward22-21 Explain why an amino acid cannot exist in an un-ionized form at any pH.arrow_forwardTo which family of mirror-image isomers do nearly all naturally occurring amino acids belong?arrow_forward
- With the help of Table 20-1, classify each of the standard amino acids in Problem 20-10 as hydrophobic or hydrophilic.arrow_forward22-89 What kind of noncovalent interaction occurs between the following amino acids? (a) Valine and isoleucine (b) Glutamic acid and lysine (c) Tyrosine and threonine (d) Alanine and alaninearrow_forwardWhat functional groups are found in all amino acids? How many different amino acids are found in naturally occurring proteins?arrow_forward
- What characteristics indicate that amino acids exist as zwitterions?arrow_forwardWhich 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_forwardConsider the tripeptide tyrosylleucylisoleucine. 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 an acidic side chain?arrow_forward
- 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_forward22-10 Classify the following amino acids as nonpolar, polar but neutral, acidic, or basic. (a) Arginine (b) Leucine (c) Glutamic acid (d) Asparagine (e) Tyrosine (f) Phenylalamne (g) Glycinearrow_forward22-104 Why is collagen not a very good source of dietary protein?arrow_forward
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