Structure and Properties of Peptides The heme is held in place by a bond between the Fe3+ and cysteine the Fe2+ and cysteine the Fe2+ and histidine the Fe3+ and histidine the Fe3+ and cysteine the Fe2+ and cysteine the Fe2+ and histidine the Fe3+ and histidine ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides Which of the three subunits of the G proteins binds GDP and GTP? Beta Alpha Delta Gamma Beta Alpha Delta Gamma ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides Hydrogen bonds in a-helices are 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 analogous to the steps in a spiral staircase ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides The peptide bond in proteins is usually trans unless proline is the next amino acid is planar because of steric hinderance usually cis unless proline is the next amino acid only found between proline residues usually trans unless proline is the next amino acid is planar because of steric hinderance usually cis unless proline is the next amino acid only found between proline residues ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides What is the effect of a decrease in pH on hemoglobin 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 Increase in oxygen affinity ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides The same peptide, Val-Lys-Glu-Met-Ser-Trp-Arg-Ala. was digested with chymotrypsin to produce Val-Lys-Glu-Met + Ser-Trp-Arg-Ala. Val-Lys + Glu-Met-Ser + Trp-Arg-Ala. Val-Lys-Glu-Met-Ser-Trp + Arg-Ala. Val-Lys-Glu-Met-Ser + Trp-Arg-Ala. Val-Lys-Glu-Met + Ser-Trp-Arg-Ala. Val-Lys + Glu-Met-Ser + Trp-Arg-Ala. Val-Lys-Glu-Met-Ser-Trp + Arg-Ala. Val-Lys-Glu-Met-Ser + Trp-Arg-Ala. ANSWER DOWNLOAD EXAMIANS APP
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