A water molecule can form up to h bonds a two b three

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4.A water molecule can form up to ____ H-bonds. a.Two b.Three c.Four d.Six 5.What is the molarity of water?
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Erica O’Neill BIOL/BIOC 2200 A 6.The greatest buffering capacity of an ionizable group is: Use the following figure to answer questions 7 and 8: 7.Identify the amino acid residues in the peptide. 8.What is a defining characteristic of the second amino acid from the N-terminus? a.Forms disulfide crosslinks b.It is an alpha-helix breaker c.It is actually an imino acid d.It is an important buffer at physiological pH
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Erica O’Neill BIOL/BIOC 2200 A 9.Which amino acid(s) has/have multiple chiral carbons? I.Threonine II.Lysine III.Isoleucine IV.Glutamic acid 10.Which amino acid(s) has/have an achiral α-carbon? I.Serine II.Glycine III.Alanine 11.In biological systems, amino acids are _______ and most carbohydrates are _______. 12.What is an ampholyte? a.Has both hydrophobic and hydrophilic parts b.Can act as either an acid or a base c.Can be in either R or S configuration d.Can be in either L or D configuration e.An animal a herpetologist would study
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Erica O’Neill BIOL/BIOC 2200 A 13.You identify an amino acid residue which is buried within a protein. You have most likely identified: 14.Which amino acid is NOT one of the 10 essential amino acids? 15.There exists a peptidase which cleaves at the C-terminal side of residues with aromatic side chains. Which of the following peptides has the most potential sites of cleavage? 16.What is NOT a characteristic of the peptide bond? a.Partial double bond character b.Usually found in cis conformation c.The atoms of the peptide bond are planar d.Hydrolysis of the bond is thermodynamically favored in aqueous media e.None of the above
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  • Fall '19
  • Erica O’Neill

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