Structure and Properties of Peptides Hydrogen bonds in a-helices are analogous to the steps in a spiral staircase roughly parallel to the helix axis not present at Phe residues more numerous than Vander Waals interactions analogous to the steps in a spiral staircase roughly parallel to the helix axis not present at Phe residues more numerous than Vander Waals interactions ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides What was the first protein whose complete tertiary structure was determined? Myoglobin Pancreatic ribonuclease Lysozyme Pancreatic DNase Myoglobin Pancreatic ribonuclease Lysozyme Pancreatic DNase ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides The major element of secondary structure in myoglobin and hemoglobin is All of these the P-strand the a-helix the reverse turn All of these the P-strand the a-helix the reverse turn ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides The oxygen in hemoglobin and myoglobin is bound to the iron atom in the heme group histidine residues in the protein the nitrogen atoms on the heme lysine residues in the protein the iron atom in the heme group histidine residues in the protein the nitrogen atoms on the heme lysine residues in the protein 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 No effect on oxygen affinity Increase affinity in muscle cell otherwise decrease Decrease in oxygen affinity Increase in oxygen affinity No effect on oxygen affinity Increase affinity in muscle cell otherwise decrease Decrease in oxygen affinity ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides Secondary structure in protein refers to three dimensional arrangement of all amino acids in polypeptide chain regular folding of regions of the polypeptide chain linear sequence of amino acids joined together by peptide bond protein made up of more than one polypeptide chain three dimensional arrangement of all amino acids in polypeptide chain regular folding of regions of the polypeptide chain linear sequence of amino acids joined together by peptide bond protein made up of more than one polypeptide chain ANSWER DOWNLOAD EXAMIANS APP
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