UNE Biochemistry COMPREHENSIVE MIDTERM Study Bank
EXAM 2026-2027 NEWEST VERSION WITH COMPLETE
QUESTIONS AND CORRECT DETAILED ANSWERS\(Verified
Answers) Already Graded A+ | Guaranteed
Success!!University of New England || MBS 650
When the insulin to glucagon ratio is low, glycogenolysis is activated in
the liver. Which of the following is the primary fate of the glucose-6-
phosphate released under these conditions?
a.) Dephosphorylated and released into the blood to maintain blood
glucose
b.) Released into the blood as glucose-6-phosphate
c.) Directly used as a substrate for gluconeogenesis
d.) Immediately converted to fructose-6-phosphate used as a substrate
for glycolysis
Dephosphorylated and released into the blood to maintain blood glucose
(A)
,The association of DNA and histones can be modified by histone
acetylation. A decrease in histone acetylation will have which of the
following impacts on the association of DNA and histones?
a.) Increase DNA: histone association
b.) Decrease DNA: histone association
c.) Have no impact on the association of DNA and histones
Increase DNA: histone association (A)
Which of the following is an example of enzyme regulation through covalent
modification?
a.) Binding of GTP to a monomeric G-protein
b.) Phosphorylation of muscle glycogen phosphorylase
c.) Digestion of misfiled proteins by lysosomes
d.) Cleavage of chymotrypsinogen to chymotrypsin
Phosphorylation of muscle glycogen phosphorylase (B)
,Chymotrypsin is a protease that cleaves peptide bonds. It is characterized as
which of the following classes of enzymes?
a.) Oxidoreductase
b.) Transferase
c.) Hydrolase
d.) Ligase
e.) Isomerase
f.) Lyase
Hydrolase (C)
, A 19-year-old boy is diagnosed with Creutzfeldt-Jakob Disease which is
caused by the introduction of amyloid fold in the disease-causing
protein. The introduction of this fold causes the protein to transition from a
primarily alpha-helical structure to an aggregate of mostly beta-sheets. This
change in protein structure (leading to disease) is best
attributed to changes in which of the following?
a.) Folding of the primary structures
b.) Folding of the secondary structures
c.) Folding of the tertiary structures
d.) Folding of the quaternary structures
Folding of the secondary structures (B)
EXAM 2026-2027 NEWEST VERSION WITH COMPLETE
QUESTIONS AND CORRECT DETAILED ANSWERS\(Verified
Answers) Already Graded A+ | Guaranteed
Success!!University of New England || MBS 650
When the insulin to glucagon ratio is low, glycogenolysis is activated in
the liver. Which of the following is the primary fate of the glucose-6-
phosphate released under these conditions?
a.) Dephosphorylated and released into the blood to maintain blood
glucose
b.) Released into the blood as glucose-6-phosphate
c.) Directly used as a substrate for gluconeogenesis
d.) Immediately converted to fructose-6-phosphate used as a substrate
for glycolysis
Dephosphorylated and released into the blood to maintain blood glucose
(A)
,The association of DNA and histones can be modified by histone
acetylation. A decrease in histone acetylation will have which of the
following impacts on the association of DNA and histones?
a.) Increase DNA: histone association
b.) Decrease DNA: histone association
c.) Have no impact on the association of DNA and histones
Increase DNA: histone association (A)
Which of the following is an example of enzyme regulation through covalent
modification?
a.) Binding of GTP to a monomeric G-protein
b.) Phosphorylation of muscle glycogen phosphorylase
c.) Digestion of misfiled proteins by lysosomes
d.) Cleavage of chymotrypsinogen to chymotrypsin
Phosphorylation of muscle glycogen phosphorylase (B)
,Chymotrypsin is a protease that cleaves peptide bonds. It is characterized as
which of the following classes of enzymes?
a.) Oxidoreductase
b.) Transferase
c.) Hydrolase
d.) Ligase
e.) Isomerase
f.) Lyase
Hydrolase (C)
, A 19-year-old boy is diagnosed with Creutzfeldt-Jakob Disease which is
caused by the introduction of amyloid fold in the disease-causing
protein. The introduction of this fold causes the protein to transition from a
primarily alpha-helical structure to an aggregate of mostly beta-sheets. This
change in protein structure (leading to disease) is best
attributed to changes in which of the following?
a.) Folding of the primary structures
b.) Folding of the secondary structures
c.) Folding of the tertiary structures
d.) Folding of the quaternary structures
Folding of the secondary structures (B)
