1
UNE medical biochemistry Unit 2 Test
Questions with Correct Answers | Updated
(100% Correct Answers)
If unregulated, which of the following pairs of enzymes would
represent a futile cycle? Answer: Fructose 1,6 bisphosphatase and
phosphofructokinase-1
Rotenone blocks complex 1 in the ETC. This increases levels of
NADH and would likely impair the function of which of the
following enzymes? Answer: Pyruvate dehydrogenase complex
Newborn screening shows a biotinidase deficiency in a 2-day old
infant. This deficienty impairs the infant's ability to reuse and recycle
biotin. Due to this enzymatic deficiency, the activity of which of the
following enzymes is likely impaired? Answer: pyruvate carboxylase
An individual is recently diagnosed with Type 2 diabetes. In this
individual, hyperglycemia may in part be due to inactivity of which
of the following glucose transporters on skeletal muscle? Answer:
Glut 4 (insulin dependent)
The skeletal muscle primarily provides substrate for gluconeogenesis
through which of the following processes? Answer: protein
catabolism
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, 2
Alanine can be shuttled from the skeletal muscle to the liver where
it is deaminated to produce pyruvate. When glucagon is high,
pyruvate is primarily used as a substrate for which of the following
pathways? Answer: gluconeogenesis
Aldolase B facilitaes a reaction that cleaves fructose 1-phosphate
into two 3-carbon molecules that will enter glycolysis as which of
the following compounds? Answer: glyceraldehyde-3-phosphate
Within the RBC, NADPH is used for which of the following
processes? Answer: to re-reduce glutathione
Galactose-1-phosphate is initially converted to glucose-1-phosphate
and requires which of the following compounds? Answer: UDP-
glucose
Which of the following are the two primary products of the Pentose
Phosphate pathway? Answer: Ribose-5-phosphate and NADPH
Which of the following enzymes is involved in the non-oxidative
portion of the Pentose Phosphate Pathway? Answer: transaldolase
A patient presents with a deficiency of thiamine. If this patient's liver
cells are compared to normal liver cells, which of the following
products would be decreased in the patient's cells (compared to the
normal cells), if the cells are only given glucose as a fuel? Answer:
© 2025 All rights reserved
UNE medical biochemistry Unit 2 Test
Questions with Correct Answers | Updated
(100% Correct Answers)
If unregulated, which of the following pairs of enzymes would
represent a futile cycle? Answer: Fructose 1,6 bisphosphatase and
phosphofructokinase-1
Rotenone blocks complex 1 in the ETC. This increases levels of
NADH and would likely impair the function of which of the
following enzymes? Answer: Pyruvate dehydrogenase complex
Newborn screening shows a biotinidase deficiency in a 2-day old
infant. This deficienty impairs the infant's ability to reuse and recycle
biotin. Due to this enzymatic deficiency, the activity of which of the
following enzymes is likely impaired? Answer: pyruvate carboxylase
An individual is recently diagnosed with Type 2 diabetes. In this
individual, hyperglycemia may in part be due to inactivity of which
of the following glucose transporters on skeletal muscle? Answer:
Glut 4 (insulin dependent)
The skeletal muscle primarily provides substrate for gluconeogenesis
through which of the following processes? Answer: protein
catabolism
© 2025 All rights reserved
, 2
Alanine can be shuttled from the skeletal muscle to the liver where
it is deaminated to produce pyruvate. When glucagon is high,
pyruvate is primarily used as a substrate for which of the following
pathways? Answer: gluconeogenesis
Aldolase B facilitaes a reaction that cleaves fructose 1-phosphate
into two 3-carbon molecules that will enter glycolysis as which of
the following compounds? Answer: glyceraldehyde-3-phosphate
Within the RBC, NADPH is used for which of the following
processes? Answer: to re-reduce glutathione
Galactose-1-phosphate is initially converted to glucose-1-phosphate
and requires which of the following compounds? Answer: UDP-
glucose
Which of the following are the two primary products of the Pentose
Phosphate pathway? Answer: Ribose-5-phosphate and NADPH
Which of the following enzymes is involved in the non-oxidative
portion of the Pentose Phosphate Pathway? Answer: transaldolase
A patient presents with a deficiency of thiamine. If this patient's liver
cells are compared to normal liver cells, which of the following
products would be decreased in the patient's cells (compared to the
normal cells), if the cells are only given glucose as a fuel? Answer:
© 2025 All rights reserved
