UNE Medical Biochemistry Unit 1 Test Realistic Questions And
Verified Answers With Complete Solutions 2026.
Changes in the physiological variables listed below can alter the affinity
of hemoglobin for oxygen. Which of the following will lower the affinity
of hemoglobin for oxygen?
a) decrease in protons
b) increase in 2,3 bisphosphoglycerate (BPG)
c) increase in pH
d) decrease in CO2 - ANSWER: Increase in 2,3 bisphosphoglycerate
(BPG)
Domains are common structural elements that retain a particular
function within the protein. Which of the following is an example of a
protein domain?
a) a prosthetic group such as heme
b) irregular coils and loops
c) an arrangement of β-strands connected by α- helixes
d) a single α- helix - ANSWER: An arrangement of β-strands connected
by α-helixes
A 22-year-old female is diagnosed with acute pancreatitis. Elevation of
which of the following serum enzymes would be consistent with this
diagnosis?
a) lactate dehydrogenase
b) amylase
, c) troponin
d) creatine kinase - ANSWER: amylase
Movement of ammonia from an amino acid to an alpha-keto acid
involves a family of enzymes best categorized as:
a) transferases
b) ligases
c) lyases
d) isomerases - ANSWER: transferases
Which of the following proteins is likely to have quaternary structure?
a) a protein that contains both α-helix and β-sheet secondary
structures
b) a multimeric protein that contains multiple peptide chains
c) a small protein consisting of a single amino acid chain
d) a large transmemberane protein with seven alpha helical domains -
ANSWER: a multimeric protein that contains multiple peptide chains
Cleavage of fructose 1, 6 bisphosphate to dihydroxyacetone and
glyceraldehyde 3-phosphate is achieved by what class of enzymes?
a) ligase
b) lyase
c) transferase
d) hydrolase - ANSWER: Lyase
Verified Answers With Complete Solutions 2026.
Changes in the physiological variables listed below can alter the affinity
of hemoglobin for oxygen. Which of the following will lower the affinity
of hemoglobin for oxygen?
a) decrease in protons
b) increase in 2,3 bisphosphoglycerate (BPG)
c) increase in pH
d) decrease in CO2 - ANSWER: Increase in 2,3 bisphosphoglycerate
(BPG)
Domains are common structural elements that retain a particular
function within the protein. Which of the following is an example of a
protein domain?
a) a prosthetic group such as heme
b) irregular coils and loops
c) an arrangement of β-strands connected by α- helixes
d) a single α- helix - ANSWER: An arrangement of β-strands connected
by α-helixes
A 22-year-old female is diagnosed with acute pancreatitis. Elevation of
which of the following serum enzymes would be consistent with this
diagnosis?
a) lactate dehydrogenase
b) amylase
, c) troponin
d) creatine kinase - ANSWER: amylase
Movement of ammonia from an amino acid to an alpha-keto acid
involves a family of enzymes best categorized as:
a) transferases
b) ligases
c) lyases
d) isomerases - ANSWER: transferases
Which of the following proteins is likely to have quaternary structure?
a) a protein that contains both α-helix and β-sheet secondary
structures
b) a multimeric protein that contains multiple peptide chains
c) a small protein consisting of a single amino acid chain
d) a large transmemberane protein with seven alpha helical domains -
ANSWER: a multimeric protein that contains multiple peptide chains
Cleavage of fructose 1, 6 bisphosphate to dihydroxyacetone and
glyceraldehyde 3-phosphate is achieved by what class of enzymes?
a) ligase
b) lyase
c) transferase
d) hydrolase - ANSWER: Lyase
