UNE Biochemistry Midterm Questions with
Complete Solutions
Which of the following components of the electron transport chain is not bound to the
mitochondrial membrane? CoQ of cytochrome C
The glycerophosphate shuttle is the major shuttle of most tissues. Which of the following best
describes the transfer of electrons by this shuttle? Electrons are directly transferred from
glycerol 3-phosphate to an FAD containing glycerol phosphate dehydrogenase
The last cytochrome in the ETC, cytochrome oxidase, passes electrons to O2, Cytochrome C
oxidase is able to do this because it has which the following characteristics? A lower Km
for oxygen than hemoglobin
Which of the following would be consistent with an exergonic reaction? Delta G0 would
be negative
Which of the following describes a correct and complete electron transfer pathway necessary for
oxidative phosphorylation? NADH > Complex I > CoQ > Complex III > Cyt C >
Complex IV
,The fully reduced quinol form of CoQ contains which of the following combination of electrons
and protons? Two electrons and two protons
Dinitrophenol is an uncoupler of the electron transport chain. The addition of dinitrophenol will
have which of the following impacts? Increase oxygen consumption
The glycerophosphate shuttle is the major shuttle of most tissues. Which of the following best
describes the transfer of electrons by this shuttle? Electrons are directly transferred from
glycerol 3-phosphate to an FAD containing glycerol phosphate dehydrogenase
Which of the following describes the malate-aspartate shuttle system? Generates 2.5
molecules of APT in mitochondria per each NADH from glycolysis
As electrons flow through complexes in the inner mitochondrial membrane, protons are pumped
from the metric to the inner membrane space. which of the following statements i most reflective
of the pH in the inter membrane space? The pH is higher in the matrix when compared to
the intermembrane space
, ATP is used to carry energy within the cell. The majority of energy in ATP is stored within which
of the following bonds indicated on the image below? 1
Insulin stimulated fatty acid synthesis in the liver. These fatty acids are transported to the adipose
tissue as which of the following? VLDL particles
Which of the following pathways provides the primary oxidizable fuel for skeletal muscle in the
fasted state? Lipolysis from adipose tissue
Shortly after a meal, there will be an increased activity in which of the following pathways as a
result of increased insulin? Glycolysis
What is the primary oxidized fuel for skeletal muscle in the fasted state? Free fatty acids
Which of the following is an insulin insensitive GLUT transporter found primarily on the liver?
GLUT2
In the event that PI-3 kinase is not activated downstream of insulin, which of the following
proteins would not be able to dock to the membrane? Protein kinase B
Complete Solutions
Which of the following components of the electron transport chain is not bound to the
mitochondrial membrane? CoQ of cytochrome C
The glycerophosphate shuttle is the major shuttle of most tissues. Which of the following best
describes the transfer of electrons by this shuttle? Electrons are directly transferred from
glycerol 3-phosphate to an FAD containing glycerol phosphate dehydrogenase
The last cytochrome in the ETC, cytochrome oxidase, passes electrons to O2, Cytochrome C
oxidase is able to do this because it has which the following characteristics? A lower Km
for oxygen than hemoglobin
Which of the following would be consistent with an exergonic reaction? Delta G0 would
be negative
Which of the following describes a correct and complete electron transfer pathway necessary for
oxidative phosphorylation? NADH > Complex I > CoQ > Complex III > Cyt C >
Complex IV
,The fully reduced quinol form of CoQ contains which of the following combination of electrons
and protons? Two electrons and two protons
Dinitrophenol is an uncoupler of the electron transport chain. The addition of dinitrophenol will
have which of the following impacts? Increase oxygen consumption
The glycerophosphate shuttle is the major shuttle of most tissues. Which of the following best
describes the transfer of electrons by this shuttle? Electrons are directly transferred from
glycerol 3-phosphate to an FAD containing glycerol phosphate dehydrogenase
Which of the following describes the malate-aspartate shuttle system? Generates 2.5
molecules of APT in mitochondria per each NADH from glycolysis
As electrons flow through complexes in the inner mitochondrial membrane, protons are pumped
from the metric to the inner membrane space. which of the following statements i most reflective
of the pH in the inter membrane space? The pH is higher in the matrix when compared to
the intermembrane space
, ATP is used to carry energy within the cell. The majority of energy in ATP is stored within which
of the following bonds indicated on the image below? 1
Insulin stimulated fatty acid synthesis in the liver. These fatty acids are transported to the adipose
tissue as which of the following? VLDL particles
Which of the following pathways provides the primary oxidizable fuel for skeletal muscle in the
fasted state? Lipolysis from adipose tissue
Shortly after a meal, there will be an increased activity in which of the following pathways as a
result of increased insulin? Glycolysis
What is the primary oxidized fuel for skeletal muscle in the fasted state? Free fatty acids
Which of the following is an insulin insensitive GLUT transporter found primarily on the liver?
GLUT2
In the event that PI-3 kinase is not activated downstream of insulin, which of the following
proteins would not be able to dock to the membrane? Protein kinase B
