Biochemistry
9th Edition
ISBN: 9781305961135
Author: Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal
Publisher: Cengage Learning
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Chapter 3, Problem 18RE
REFECT AND APPLY If you were to have a mythical amino acid based on glutamic acid, but one in which the hydrogen that is attached to the
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Chapter 3 Solutions
Biochemistry
Ch. 3 - RECALL How do D-amino acids differ from L-amino...Ch. 3 - RECALL Which amino acid is technically not an...Ch. 3 - RECALL For each of the following, name an amino...Ch. 3 - RECALL Identify the polar amino acids, the...Ch. 3 - RECALL Identify the nonpolar amino acids and the...Ch. 3 - RECALL Are amino acids other than the usual 20...Ch. 3 - MATHEMATICAL Predict the predominant ionized forms...Ch. 3 - MATHEMATICAL Draw structures of the following...Ch. 3 - MATHEMATICAL Predict the predominant forms of the...Ch. 3 - MATHEMATICAL Calculate the isoelectric point of...
Ch. 3 - MATHEMATICAL Sketch a titration curve for the...Ch. 3 - MATHEMATICAL Sketch a titration curve for the...Ch. 3 - MATHEMATICAL An organic chemist is generally happy...Ch. 3 - MATHEMATICAL Sketch a titration curve for aspartic...Ch. 3 - REFECT AND APPLY Suggest a reason why amino acids...Ch. 3 - REFECT AND APPLY Write equations to show the ionic...Ch. 3 - REFECT AND APPLY Based on the information in Table...Ch. 3 - REFECT AND APPLY If you were to have a mythical...Ch. 3 - REFECT AND APPLY What would be the pI for the...Ch. 3 - REFECT AND APPLY Identify the charged groups in...Ch. 3 - REFECT AND APPLY Consider the following peptides:...Ch. 3 - REFECT AND APPLY In each of the following two...Ch. 3 - REFECT AND APPLY Could the amino acid glycine...Ch. 3 - RECALL Sketch resonance structures for the peptide...Ch. 3 - RECALL How do the resonance structures of the...Ch. 3 - REFECT AND APPLY Would the peptide group be planar...Ch. 3 - Prob. 27RECh. 3 - REFECT AND APPLY Consider the peptides...Ch. 3 - REFECT AND APPLY Would you expect the titration...Ch. 3 - REFECT AND APPLY What are the sequences of all the...Ch. 3 - REFECT AND APPLY Answer Question 30 using...Ch. 3 - REFECT AND APPLY Most proteins contain more than...Ch. 3 - REFECT AND APPLY If the amino acids alanine and...Ch. 3 - Prob. 34RECh. 3 - REFECT AND APPLY Would the presence of a chiral...Ch. 3 - REFECT AND APPLY What might you infer (or know)...Ch. 3 - Prob. 37RECh. 3 - REFECT AND APPLY Suggest a reason why the amino...Ch. 3 - REFECT AND APPLY Consider the peptides...Ch. 3 - Prob. 40RECh. 3 - Prob. 41RECh. 3 - REFECT AND APPLY You are studying with a friend...Ch. 3 - Prob. 43RECh. 3 - REFECT AND APPLY Suggest a reason (or reasons) why...Ch. 3 - Prob. 45RECh. 3 - REFECT AND APPLY Speculate on the properties of...Ch. 3 - RECALL What are the structural differences between...Ch. 3 - RECALL How do the peptide hormones oxytocin and...Ch. 3 - RECALL What is the role of the disulfide bond in...Ch. 3 - RECALL Is it possible to form cyclic peptides...Ch. 3 - Prob. 51RECh. 3 - RECALL What types of experiments led to evidence...Ch. 3 - Prob. 53RECh. 3 - THOUGHT QUESTION Imagine we identify a gene that...
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- RECALL Describe citrulline and ornithine based on their similarity to one of the 20 standard amino acids.arrow_forwardREFECT AND APPLY What are the sequences of all the possible tripeptides that contain the amino acids aspartic acid, leucine, and phenylalanine? Use the three-letter abbreviations to express your answer.arrow_forwardREFECT AND APPLY Most proteins contain more than 100 amino acid residues. If you decided to synthesize a 100-mer, with 20 different amino acids available for each position, how many different molecules could you make?arrow_forward
- REFECT AND APPLY In each of the following two groups of amino acids, which amino acid would be the easiest to distinguish from the other two amino acids in the group, based on a titration? (a) gly, leu, lys (b) glu, asp, serarrow_forwardREFECT AND APPLY You are studying with a friend who draws the structure of alanine at pH 7. It has a carboxyl group (COOH) and an amino group (NH2). What suggestions would you make?arrow_forwardREFECT AND APPLY Would the peptide group be planar if the amino group of amino acids was bonded to the carbon of the amino acid, rather than to the a carbon?arrow_forward
- REFECT AND APPLY Suggest a reason (or reasons) why amino ac- ids polymerize to form proteins that have comparatively few covalent crosslinks in the polypeptide chain.arrow_forwardRECALL How do D-amino acids differ from L-amino acids? What biological roles are played by peptides that contain D-amino acids?arrow_forwardMATHEMATICAL Calculate the isoelectric point of each of the following amino acids: glutamic acid, serine, histidine, lysine, tyro- sine, and arginine.arrow_forward
- RECALL For each of the following, name an amino acid in which the R group contains it: a hydroxyl group, a sulfur atom, a second chiral carbon atom, an amino group, an amide group, an acid group, an aromatic ring, and a branched side chain.arrow_forwardRECALL Are amino acids other than the usual 20 amino acids found in proteins? If so, how are such amino acids incorporated into proteins? Give an example of such an amino acid and a protein in which it occurs.arrow_forwardRECALL What are the unique enzymes needed to -oxidize a monounsaturated fatty acid?arrow_forward
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