Structure and Properties of Peptides Hemoglobin has quaternary structure and is made up of six polypeptide chains, two α-chains and four β-chains two polypeptide chains, one α-chains and one β-chains five polypeptide chains, two α-chains and three β-chains four polypeptide chains, two α-chains and two β-chains six polypeptide chains, two α-chains and four β-chains two polypeptide chains, one α-chains and one β-chains five polypeptide chains, two α-chains and three β-chains four polypeptide chains, two α-chains and two β-chains 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 An oil drop with a polar coat is a metaphor referring to the three dimensional structure of collagen silk protein globular proteins fibrous proteins collagen silk protein globular proteins fibrous proteins ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides If the F and Y angles of each peptide unit in a protein are known, which of the following may also be determined? Complete quaternary structure Thermodynamic stability Complete secondary structure Complete tertiary structure Complete quaternary structure Thermodynamic stability Complete secondary structure Complete tertiary structure ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides The major element of secondary structure in myoglobin and hemoglobin is the a-helix All of these the reverse turn the P-strand the a-helix All of these the reverse turn the P-strand ANSWER DOWNLOAD EXAMIANS APP
Structure and Properties of Peptides Hydrogen bonds in a-helices are roughly parallel to the helix axis more numerous than Vander Waals interactions analogous to the steps in a spiral staircase not present at Phe residues roughly parallel to the helix axis more numerous than Vander Waals interactions analogous to the steps in a spiral staircase not present at Phe residues ANSWER DOWNLOAD EXAMIANS APP
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