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Concept explainers
(a)
Interpretation: The name of the standard amino acids that have side chains with the given characteristic has to be stated.
Concept introduction: Amino acid is a compound that is composed of
(b)
Interpretation: The name of the standard amino acids that have side chains with the given characteristic has to be stated.
Concept introduction: Amino acid is a compound that is composed of
(c)
Interpretation: The name of the standard amino acids that have side chains with the given characteristic has to be stated.
Concept introduction: Amino acid is a compound that is composed of
(d)
Interpretation: The name of the standard amino acids that have side chains with the given characteristic has to be stated.
Concept introduction: Amino acid is a compound that is composed of
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Chapter 20 Solutions
EBK GENERAL, ORGANIC, AND BIOLOGICAL CH
- Give the names of the 20 Common Amino Acids and draw the structure of each.arrow_forwardWhich of the following statements is true about amino acids? a. All twenty (20) of these protein-derived amino acids are a-amino acids, meaning that the amino group is located on the carbon alpha to the carboxyl group. b. For nineteen (19) of the twenty (20) amino acids, the a-amino group is primary. Glycine is different; its a-amino group is secondary. c. With the exception of proline, the a-carbon of each amino acid is a chiral center. As shown in Table 27.1, all 19 chiral amino acids have the same relative d. Both a & carrow_forwardIn the following list, identify the carbohydrate, the fatty acid, the amino acid, and the polypeptide:a. methionine-valine-proline-leucine-serineb. C6H12O6c. NH2CHRCOOHd. CH3(CH2)16COOHarrow_forward
- Draw the structures of the 20 standard amino acids and give their one- and three letter abbreviations.arrow_forwardUsing the amino acid phenylalanine, draw and specify the nature of each following tertiary structure interactions between:a. two cysteinesb. arginine and glutamic acidc. isoleucine and tyrosinearrow_forwardFor each amino acid: [1] draw the L enantiomer in a Fischer projection; [2] classify the amino acid as neutral, acidic, or basic; [3] give the three-letter symbol; [4] give the one-letter symbol. a. arginine c. glutamic acid b. tyrosine d. valinearrow_forward
- Provide for each amino acid the names that will uniquely identify all ionisable groups at pH 11.0 and indicate individual charges associated with these groups and the overall charge of the amino acid. a. Lysine, Leucine, Histidine and Aspartatearrow_forwardConstruct the two enantiomeric forms/structure of the following monosaccharides and designate the handedness of each using D, L system: a. Ribulosearrow_forwardWhat is the predominant form of each of the following amino acids at pH = 11? What is the overall charge on the amino acid? (a) valine; (b) proline; (c) glutamic acid; (d) lysinearrow_forward
- One or more of the compounds shown below will satisfy each of the following statements. Not all compounds may be used; some may be used twice. Put the number(s) in the blank. (1) Found in chitin. (2) An L-saccharide. (3) The first residue attached to asparagine in N-linked glycans. (4) A uronic acid. (5) A ketose. CH,OH CoO COO OH H H H H ОН Н но OH OH H OH H HO OH H NHC- CH, Oso, OH (a) (b) (c) CH,OH CH,OH CH,OH C=0 CHOH C=0 H-C- OH CH,OH но -с-н ČH,OH CH,OH (d) (e)arrow_forwardLook at Table 18.3 and identify the type of noncovalent interaction expected between the side chains of the following pairs of amino acids:(a) Glutamine and serine (b) Isoleucine and proline(c) Aspartate and lysine (d) Alanine and phenylalaninearrow_forwardFor each of the following amino acids: 1) describe what the important functional group of the amino acid side chain is, 2) identify the charge of the side chain, 3) name another component in the structure that the amino acid might interact with, and 4) indicate how the interaction with the component listed in 3) might be occurring (i.e., electrostatic interaction, hydrogen bond, hydrophobic interaction, etc.) a) Asp153 b) Arg166 c) Lys167arrow_forward
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