WGU C785 Biochemistry preassessment Questions and Answers with
Verified Solutions | Latest 2026 Update
Q: What is a temporary modification to protein structure by kinases that alters
enzyme function?
Answer:
Phosphorylation
Q: Acetylcholine is broken down to acetate and choline by an enzyme called
acetylcholinesterase. Low levels of acetylcholine in the brain is associated with
neurodegenerative disease. Which of the following medications could be used to
treat neurodegeneration associated with low acetylcholine levels?
Answer:
A non-competitive inhibitor of acetylcholinesterase.
Q: Which type of inhibition occurs when a particular drug binds to the allosteric
site of an enzyme and subsequently changes the enzyme's structure?
Answer:
Noncompetitive
,WGU C785 Biochemistry preassessment Questions and Answers with
Verified Solutions | Latest 2026 Update
Q: Proteases are a class of enzymes that hydrolyze protein strands into smaller
units. A particular
Answer:
protease, located in the stomach, demonstrates activity at a pH = 1.
Q: What is the impact on the protease activity if the pH is increased to 7.4?
Answer:
Significantly decrease
Q: What is an accurate description of the proton gradient that is formed during
aerobic metabolism?
Answer:
There is a higher H + concentration in the intermembrane space than in the matrix.
Q: Which complex polysaccharide acts as an energy-storing molecule in the liver?
Answer:
glycogen
, WGU C785 Biochemistry preassessment Questions and Answers with
Verified Solutions | Latest 2026 Update
Q: How does insulin impact carbohydrate metabolism?
Answer:
It stimulates the uptake of glucose from the blood by cells in the body.
Q: What occurs during the biochemical process of glycation?
Answer:
A covalent bond forms between a sugar and a protein or lipid.
Q: Which metabolic pathway involves coenzyme A, NAD, and FAD?
Answer:
beta oxidation
Q: Which cellular condition prompts the cell to perform fermentation rather than
the citric acid cycle?
Answer:
lack of O2
Verified Solutions | Latest 2026 Update
Q: What is a temporary modification to protein structure by kinases that alters
enzyme function?
Answer:
Phosphorylation
Q: Acetylcholine is broken down to acetate and choline by an enzyme called
acetylcholinesterase. Low levels of acetylcholine in the brain is associated with
neurodegenerative disease. Which of the following medications could be used to
treat neurodegeneration associated with low acetylcholine levels?
Answer:
A non-competitive inhibitor of acetylcholinesterase.
Q: Which type of inhibition occurs when a particular drug binds to the allosteric
site of an enzyme and subsequently changes the enzyme's structure?
Answer:
Noncompetitive
,WGU C785 Biochemistry preassessment Questions and Answers with
Verified Solutions | Latest 2026 Update
Q: Proteases are a class of enzymes that hydrolyze protein strands into smaller
units. A particular
Answer:
protease, located in the stomach, demonstrates activity at a pH = 1.
Q: What is the impact on the protease activity if the pH is increased to 7.4?
Answer:
Significantly decrease
Q: What is an accurate description of the proton gradient that is formed during
aerobic metabolism?
Answer:
There is a higher H + concentration in the intermembrane space than in the matrix.
Q: Which complex polysaccharide acts as an energy-storing molecule in the liver?
Answer:
glycogen
, WGU C785 Biochemistry preassessment Questions and Answers with
Verified Solutions | Latest 2026 Update
Q: How does insulin impact carbohydrate metabolism?
Answer:
It stimulates the uptake of glucose from the blood by cells in the body.
Q: What occurs during the biochemical process of glycation?
Answer:
A covalent bond forms between a sugar and a protein or lipid.
Q: Which metabolic pathway involves coenzyme A, NAD, and FAD?
Answer:
beta oxidation
Q: Which cellular condition prompts the cell to perform fermentation rather than
the citric acid cycle?
Answer:
lack of O2
