Structure and Properties of Peptides The heme is held in place by a bond between the Fe3+ and cysteine the Fe2+ and histidine the Fe3+ and histidine the Fe2+ and cysteine the Fe3+ and cysteine the Fe2+ and histidine the Fe3+ and histidine the Fe2+ and cysteine ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides What is the effect of a decrease in pH on hemoglobin oxygen affinity? No effect on oxygen affinity Increase in oxygen affinity Decrease in oxygen affinity Increase affinity in muscle cell otherwise decrease No effect on oxygen affinity Increase in oxygen affinity Decrease in oxygen affinity Increase affinity in muscle cell otherwise decrease 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 protein made up of more than one polypeptide chain linear sequence of amino acids joined together by peptide bond three dimensional arrangement of all amino acids in polypeptide chain regular folding of regions of the polypeptide chain protein made up of more than one polypeptide chain linear sequence of amino acids joined together by peptide bond ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides Which of the following is an example of tertiary structure in a protein? A globular domain An a-helix A multimeric protein A P-pleated sheet A globular domain An a-helix A multimeric protein A P-pleated sheet 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 four polypeptide chains, two α-chains and two β-chains five polypeptide chains, two α-chains and three β-chains two polypeptide chains, one α-chains and one β-chains six polypeptide chains, two α-chains and four β-chains four polypeptide chains, two α-chains and two β-chains five polypeptide chains, two α-chains and three β-chains two polypeptide chains, one α-chains and one β-chains ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides Hydrogen bonds in a-helices are not present at Phe residues analogous to the steps in a spiral staircase more numerous than Vander Waals interactions roughly parallel to the helix axis not present at Phe residues analogous to the steps in a spiral staircase more numerous than Vander Waals interactions roughly parallel to the helix axis ANSWER DOWNLOAD EXAMIANS APP
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