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CHEM-120:| CHEM 120 INTRO TO GENERAL, ORGANIC & BIOLOGICAL CHEMISTRY WITH LAB EXAM 3 PROTEIN QUESTIONS WITH 100% CORRECT ANSWERS| GRADED A+$9.00
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Definition
first protein to have its primary structure determined was _____, it is hormone that regulates the
glucose level in the blood.
hemoglobin
insulin
cortisol
glucagon1 of 34
Definition
During the protein denaturation bonds disrupted hydrogen bonds, hydrophobic interactions
between nonpolar residues.
(Heat, Acids and Bases, Heavy Metal, Agitation, Organic compounds, Agitation)
Acids And Bases
Kinetic Energy
Heat
Temperature2 of 34 Definition
_______ pr otein structur e, incl ude alpha helix, bet a-pleated sheet , forms by hydrogen bonding
betw een the b ackbone atoms in the peptide bonds along the chain?
(primar y, secondar y, tertiar y, quaternar y)
tertiar y
quaternar y
secondar y
primar y3 of 34
Definition
dena turation of a protein occur s when there is a change that disrupts the int eractions betw een
residues that stabilize the ____, ____, ____ pr otein structur e.
acids and b ases
primar y
tertiar y
secondar y, tertiar y, quaternar y4 of 34 Definition
Hemogl obin consis ts of four polypeptide chains, it is what protein structur e?
(primar y, secondar y, tertiar y, quaternar y)
tertiar y
primar y
quaternar y
secondar y5 of 34
Definition
what protein structur al level is represent ed by the hy drophobic side chains of the amino acid
residues at the center of a globular protein?
(primar y, secondar y, tertiar y, quaternar y)
tertiar y
primar y
quaternar y
secondar y6 of 34
Definition
the R group of a polar ____ amino acid contains a carbo xylate group, the R group of a polar ___
amino acid contains a ammonium group.
acidic, neutr al
peptide
amide , peptide
acidic, b asic7 of 34 Definition
______: three hel ical polypeptides woven together .
(a helix, B-pl eated, triple hel ix)
triple hel ix
collagen
a helix
primar y8 of 34
Definition
secondar y structur e is , C=O attach to NH by ____ bonds?
peptide
oxygen
hydrogen
nitrogen9 of 34
Definition
peptide
insulin
Polypeptide
glycine10 of 34
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