Structure and Properties of Peptides Which of the following is an example of tertiary structure in a protein? A P-pleated sheet An a-helix A multimeric protein A globular domain A P-pleated sheet An a-helix A multimeric protein A globular domain ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides The peptide bond in proteins is usually trans unless proline is the next amino acid usually cis unless proline is the next amino acid only found between proline residues is planar because of steric hinderance usually trans unless proline is the next amino acid usually cis unless proline is the next amino acid only found between proline residues is planar because of steric hinderance ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides What is the effect of a decrease in pH on hemoglobin oxygen affinity? Increase in oxygen affinity Decrease in oxygen affinity No effect on oxygen affinity Increase affinity in muscle cell otherwise decrease Increase in oxygen affinity Decrease in oxygen affinity No effect on oxygen affinity Increase affinity in muscle cell otherwise decrease ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides The heme is held in place by a bond between the Fe2+ and cysteine the Fe3+ and cysteine the Fe3+ and histidine the Fe2+ and histidine the Fe2+ and cysteine the Fe3+ and cysteine the Fe3+ and histidine the Fe2+ and histidine ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides Peptides in the fully extended chain conformation also have a cis geometry in their peptide bonds have Y = F = 180° are equivalent to the (3-sheet structure do not occur in nature also have a cis geometry in their peptide bonds have Y = F = 180° are equivalent to the (3-sheet structure do not occur in nature ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides Hemoglobin has quaternary structure and is made up of six polypeptide chains, two α-chains and four β-chains five polypeptide chains, two α-chains and three β-chains two polypeptide chains, one α-chains and one β-chains four polypeptide chains, two α-chains and two β-chains six polypeptide chains, two α-chains and four β-chains five polypeptide chains, two α-chains and three β-chains two polypeptide chains, one α-chains and one β-chains four polypeptide chains, two α-chains and two β-chains ANSWER DOWNLOAD EXAMIANS APP
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