Page 1 of 61
WGU C785 BIOCHEMISTRY 2026 EXAM BANK
ALL COMPLETE CURRENT TESTING
QUESTIONS AND DETAILED CORRECT
ANSWERS (VERIFIED) GUARANTEED
PASS/TOP-RATED A+.
BIOCHEMISTRY
Maximize your success on the WGU C785 Biochemistry exam
with focused preparation that strengthens your understanding of
biomolecule structure and function, metabolic pathways,
enzyme kinetics, and the molecular basis of genetics and
diseaseIt is specifically designed for health science students to
demonstrate mastery of biochemistry for applications in
medicine and healthcare.
Decreasing the amount of glycine in the diet ✓ ✓......
ANSWER ....... Increasing the amount of glycine in the
diet
One way to increase glutathione levels is to increase the
activity of glutathione synthetase. Glutathione synthetase
, Page 2 of 61
activity can be increased by increasing the amount of
substrate, or glycine available.
Which class of enzymes impacts protein function by
temporarily removing a phosphate?
Kinase
Phosphatase
Polypeptide
Lactase ✓ ✓...... ANSWER ....... Phosphatase
Phosphatases are enzymes that remove phosphate groups
from the substrates.
How does the activation energy of enzyme-catalyzed
reactions compare to those of corresponding uncatalyzed
reactions?
, Page 3 of 61
The activation energy of enzyme-catalyzed reactions are the
same as uncatalyzed reactions
The activation energy of the enzyme-catalyzed reactions
only changes in response to temperature.
The activation energy of enzyme-catalyzed reactions are
lower than the uncatalyzed reaction
The activation energy of enzyme-catalyzed reactions are
higher than uncatalyzed reactions ✓ ✓...... ANSWER .......
The activation energy of enzyme-catalyzed reactions are
lower than the uncatalyzed reaction
The activation energy is the amount of energy needed to get
the reaction started and over the energy hill to form
products. Enzymes reduce the amount of energy needed to
start the reaction or lower the amount of energy needed to
climb the energy hill.
, Page 4 of 61
A final product of a four-step metabolic pathway serves as a
noncompetitive inhibitor, binding to an enzyme in this
pathway and temporarily turning off the pathway. Which
enzyme is most likely to be targeted by the inhibitor?
The final enzyme in the pathway
The first enzyme in the pathway
Any enzyme in the middle of the pathway
The second enzyme in the pathway ✓ ✓...... ANSWER .......
The first enzyme in the pathway
The final product's structure is more unlike the substrate for
the first enzyme in the pathway than any other, and thus the
least likely to fit the active site of enzyme 1.
Which of the following could be a potential ramification of a
defective nucleotide excision repair (NER) pathway?
WGU C785 BIOCHEMISTRY 2026 EXAM BANK
ALL COMPLETE CURRENT TESTING
QUESTIONS AND DETAILED CORRECT
ANSWERS (VERIFIED) GUARANTEED
PASS/TOP-RATED A+.
BIOCHEMISTRY
Maximize your success on the WGU C785 Biochemistry exam
with focused preparation that strengthens your understanding of
biomolecule structure and function, metabolic pathways,
enzyme kinetics, and the molecular basis of genetics and
diseaseIt is specifically designed for health science students to
demonstrate mastery of biochemistry for applications in
medicine and healthcare.
Decreasing the amount of glycine in the diet ✓ ✓......
ANSWER ....... Increasing the amount of glycine in the
diet
One way to increase glutathione levels is to increase the
activity of glutathione synthetase. Glutathione synthetase
, Page 2 of 61
activity can be increased by increasing the amount of
substrate, or glycine available.
Which class of enzymes impacts protein function by
temporarily removing a phosphate?
Kinase
Phosphatase
Polypeptide
Lactase ✓ ✓...... ANSWER ....... Phosphatase
Phosphatases are enzymes that remove phosphate groups
from the substrates.
How does the activation energy of enzyme-catalyzed
reactions compare to those of corresponding uncatalyzed
reactions?
, Page 3 of 61
The activation energy of enzyme-catalyzed reactions are the
same as uncatalyzed reactions
The activation energy of the enzyme-catalyzed reactions
only changes in response to temperature.
The activation energy of enzyme-catalyzed reactions are
lower than the uncatalyzed reaction
The activation energy of enzyme-catalyzed reactions are
higher than uncatalyzed reactions ✓ ✓...... ANSWER .......
The activation energy of enzyme-catalyzed reactions are
lower than the uncatalyzed reaction
The activation energy is the amount of energy needed to get
the reaction started and over the energy hill to form
products. Enzymes reduce the amount of energy needed to
start the reaction or lower the amount of energy needed to
climb the energy hill.
, Page 4 of 61
A final product of a four-step metabolic pathway serves as a
noncompetitive inhibitor, binding to an enzyme in this
pathway and temporarily turning off the pathway. Which
enzyme is most likely to be targeted by the inhibitor?
The final enzyme in the pathway
The first enzyme in the pathway
Any enzyme in the middle of the pathway
The second enzyme in the pathway ✓ ✓...... ANSWER .......
The first enzyme in the pathway
The final product's structure is more unlike the substrate for
the first enzyme in the pathway than any other, and thus the
least likely to fit the active site of enzyme 1.
Which of the following could be a potential ramification of a
defective nucleotide excision repair (NER) pathway?
