Structure and Properties of Peptides Hydrogen bonds in a-helices are more numerous than Vander Waals interactions not present at Phe residues roughly parallel to the helix axis analogous to the steps in a spiral staircase more numerous than Vander Waals interactions not present at Phe residues roughly parallel to the helix axis analogous to the steps in a spiral staircase ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides The Ramachandran Plot illustrates the fact that the F & Y angles can assume any value in a peptide the peptide bond is planar the F & Y angles can assume approximately three different values the F & Y angles can assume only a single value in a protein the F & Y angles can assume any value in a peptide the peptide bond is planar the F & Y angles can assume approximately three different values the F & Y angles can assume only a single value in a protein ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides Hemoglobin has quaternary structure and is made up of four polypeptide chains, two α-chains and two β-chains five polypeptide chains, two α-chains and three β-chains six polypeptide chains, two α-chains and four β-chains two polypeptide chains, one α-chains and one β-chains four polypeptide chains, two α-chains and two β-chains five polypeptide chains, two α-chains and three β-chains six polypeptide chains, two α-chains and four β-chains two polypeptide chains, one α-chains and one β-chains ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides The peptide bond in proteins is 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 usually trans unless proline is the next amino acid 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 Increase affinity in muscle cell otherwise decrease Decrease in oxygen affinity No effect on oxygen affinity Increase in oxygen affinity Increase affinity in muscle cell otherwise decrease Decrease in oxygen affinity No effect on oxygen affinity ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides The oxygen in hemoglobin and myoglobin is bound to 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 the iron atom in the heme group histidine residues in the protein the nitrogen atoms on the heme ANSWER DOWNLOAD EXAMIANS APP
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