Which of these amino acids have R groups that have hydrogen-bonding potential? Ser Ile Glu Tyr Ala Thr
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- Explain what happens if even one amino acid is substituted for another in a polypeptide chain. Provide a specific example.If phenylalanine was not an essential amino acid, would diet therapy (the elimination of phenylalanine from the diet) for PKU work?Lactose is a disaccharide formed by the formation of a bond between glucose and glycosidic; lactose glycosidic; galactose hydrogen; sucrose hydrogen; fructose
- Unlike saturated fatty acids, the tails of unsaturated fatty acids incorporate one or more _______. a. phosphate groups b. glycerols c. double bonds d. single bondsBelow is the structure of glycine. Draw a tripeptide composed exclusively of glycine. Label the N-terminus and C-terminus. Draw a box around the peptide bonds.Understanding the Nature of the Ubiquitin-Ubiquitin linkage Draw the structure of the isopeptide bond formed between Gly76of one ubiquitin molecule and Lys48of another ubiquitin molecule.
- Saturated fatty acids are so named because they are saturated with (a) hydrogen (b) water (c) hydroxyl groups (d) glycerol (e) double bondsThe synthetic process by which monomers are covalently linked is (a) hydrolysis (b) isomerization (c) condensation (d) glycosidic linkage (e) ester linkageWhich of the following levels of protein structure may be affected by hydrogen bonding? (a) primary and secondary (b) primary and tertiary (c) secondary, tertiary, and quaternary (d) primary, secondary, and tertiary (e) primary, secondary, tertiary, and quaternary
- Amino acids have the generic structure seen below, where R represents different carbon-based side chains. Describe how the structure of amino acids allows them to be linked into long peptide chains to form proteins.Explain the role of bile salts and lecithin in the emulsification of lipids (fats).Which of the following is a functional group that is part of a building block of proteins? phosphate adenine amino ribose
