WGU BIOCHEMISTRY OA REVIEW EXAMS ACTUAL
QUESTIONS AND ANSWERS SURE A+
✔✔What process is disrupted after a patient invests excessive antacid that neutralizes
the pH of the stomach? - ✔✔Protein catabolism
✔✔In Alzheimer's patients, which biochemical event is responsible for their behavior? -
✔✔Protein aggregation
✔✔In which situation would altering a protein structure lead to a disease state? - ✔✔A
mutation aconitase blocks essential step in aerobic metabolism
✔✔Which force is most influential in determining the tertiary structure of a protein? -
✔✔Hydrophobic effect
✔✔Quaternary structure - ✔✔Large, functional protein structure composed or smaller
proteins with multiple subunits.
✔✔Primary - ✔✔Level of protein structure established through the dehydration
synthesis of peptide bonds
, ✔✔Describe the protein gradient of the proton that during aerobic metabolism. -
✔✔There is a higher H+ concentration in the inter membrane space than in the matrix.
✔✔Which complex polysaccharide acts as an energy storing molecule in the liver? -
✔✔Glycogen
✔✔How does insulin impact carbohydrate metabolism? - ✔✔It stimulates the uptake of
glucose from the blood by cells in the body.
✔✔What occurs during the biochemical process of glucation? - ✔✔A covalent bond
forms between a sugar and a protein or liquid.
✔✔Which metabolic pathway involves coenzyme A, NAD, & FAD? - ✔✔Beta oxidation
✔✔Which cellular condition prompts the cell to perform fermentation rather than the
citric acid cycle? - ✔✔Lack of O2
✔✔What causes the symptoms of NIDDM type 2? - ✔✔There are not enough GluT4
transporters on plasma membranes.
✔✔Which molecule is pyruvate directly converted to under aerobic conditions? -
✔✔Acetyl CoA
✔✔Which cellular organelle required for the citric acid cycle and electron transport chain
is not present in RBCs? - ✔✔Mitochondria
✔✔Which molecule is replenished by fermentation? - ✔✔NAD+
✔✔Which pathway is triggered by the intake of carbs during exercise? - ✔✔Glycolysis
✔✔How many ATP molecules are used in the conversion of pyruvate to glucose? - ✔✔6
✔✔Increased expression - ✔✔Make proteins
✔✔Decreased expression - ✔✔Not making proteins
✔✔Promoter - ✔✔Start line
✔✔Methylation - ✔✔-methyl (CH3)
-mRNA added to DNA or nuclosomes
- causes decreased expression
✔✔Base excision repair - ✔✔-only 1 nucleotide damaged
QUESTIONS AND ANSWERS SURE A+
✔✔What process is disrupted after a patient invests excessive antacid that neutralizes
the pH of the stomach? - ✔✔Protein catabolism
✔✔In Alzheimer's patients, which biochemical event is responsible for their behavior? -
✔✔Protein aggregation
✔✔In which situation would altering a protein structure lead to a disease state? - ✔✔A
mutation aconitase blocks essential step in aerobic metabolism
✔✔Which force is most influential in determining the tertiary structure of a protein? -
✔✔Hydrophobic effect
✔✔Quaternary structure - ✔✔Large, functional protein structure composed or smaller
proteins with multiple subunits.
✔✔Primary - ✔✔Level of protein structure established through the dehydration
synthesis of peptide bonds
, ✔✔Describe the protein gradient of the proton that during aerobic metabolism. -
✔✔There is a higher H+ concentration in the inter membrane space than in the matrix.
✔✔Which complex polysaccharide acts as an energy storing molecule in the liver? -
✔✔Glycogen
✔✔How does insulin impact carbohydrate metabolism? - ✔✔It stimulates the uptake of
glucose from the blood by cells in the body.
✔✔What occurs during the biochemical process of glucation? - ✔✔A covalent bond
forms between a sugar and a protein or liquid.
✔✔Which metabolic pathway involves coenzyme A, NAD, & FAD? - ✔✔Beta oxidation
✔✔Which cellular condition prompts the cell to perform fermentation rather than the
citric acid cycle? - ✔✔Lack of O2
✔✔What causes the symptoms of NIDDM type 2? - ✔✔There are not enough GluT4
transporters on plasma membranes.
✔✔Which molecule is pyruvate directly converted to under aerobic conditions? -
✔✔Acetyl CoA
✔✔Which cellular organelle required for the citric acid cycle and electron transport chain
is not present in RBCs? - ✔✔Mitochondria
✔✔Which molecule is replenished by fermentation? - ✔✔NAD+
✔✔Which pathway is triggered by the intake of carbs during exercise? - ✔✔Glycolysis
✔✔How many ATP molecules are used in the conversion of pyruvate to glucose? - ✔✔6
✔✔Increased expression - ✔✔Make proteins
✔✔Decreased expression - ✔✔Not making proteins
✔✔Promoter - ✔✔Start line
✔✔Methylation - ✔✔-methyl (CH3)
-mRNA added to DNA or nuclosomes
- causes decreased expression
✔✔Base excision repair - ✔✔-only 1 nucleotide damaged
