BIO 251 EXAM 2 ADVANCED COURSE
ASSESSMENT TEST FULLY DETAILED AND
VERIFIED
endergonic - answer ✔✔-A chemical reaction that has a positive ΔG is best described as
changing the shape of the enzyme's active site - answer ✔✔-A noncompetitive inhibitor decreases the
rate of an enzyme reaction by
not affected by the presence of an enzyme - answer ✔✔-Gibbs free energy change is
catabolic pathways - answer ✔✔-What is the term for metabolic pathways that release stored energy
by breaking down complex molecules?
kinetic - answer ✔✔-Consider a pendulum swinging. Which type(s) of energy is/are associated with the
pendulum in the following instance: the moment that it is in the middle between the two ends?
increase the rate of a reaction by lowering the activation energy barrier - answer ✔✔-Enzymes
They break large molecules into smaller parts and produce energy. - answer ✔✔-Which is usually true
of catabolic pathways?
potential - answer ✔✔-Consider a pendulum swinging. Which type(s) of energy is/are associated with
the pendulum in the following instance: the moment at which it completes one cycle, just before it
begins to fall back towards the other end.
enzyme - answer ✔✔-Which of the following is considered a catalyst?
eat causes the reactants to move faster and collide more often. - answer ✔✔-How do high
temperatures speed chemical reactions?
glycolysis - answer ✔✔-Which process in eukaryotic cells will proceed normally whether oxygen (O2)
is present or absent?
glucose - answer ✔✔-What carbon source(s) can yeast cells metabolize under anaerobic conditions to
make ATP?
lactic acid fermentation - answer ✔✔-Which of the following fermentation methods can occur in animal
skeletal muscles?
A complex that uses a proton gradient to drive the synthesis of adenosine triphosphate (ATP) - answer
✔✔-What is ATP synthase?
citric acid cycle - answer ✔✔-Which stage of aerobic respiration produces most of the NADH
molecules?
Without electron transport, protons cannot be pumped across the inner mitochondrial membrane.
Without a proton gradient, adenosine triphosphate (ATP) synthase cannot synthesize ATP. - answer
✔✔-Cyanide is a toxic molecule that can kill animals in a few minutes. It binds to cytochrome c oxidase
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, near the end of the electron transport chain in the mitochondrion. This prevents electrons from being
transported to oxygen. Why does this usually result in cell death?
produce ethanol. - answer ✔✔-Yeast cells tend to create anaerobic conditions and therefore
three - answer ✔✔-Each pyruvate molecule contains how many carbon atoms?
glycolysis and fermentation - answer ✔✔-Which of the following can occur in the cytosol of a
eukaryotic cell?
glycolysis. - answer ✔✔-In all cells, glucose metabolism begins with
True - answer ✔✔-True or False: Some prokaryotes use O2 as a final e- acceptor
Chemoheterotroph: uses chemical energy and an organic carbon source
Photoautotroph: uses light energy and inorganic carbon source
Chemoautotroph: uses chemical energy and an inorganic carbon source
Photoheterotroph: uses light energy and an organic carbon source - answer ✔✔-Match each
description with the best definition
O2 - answer ✔✔-Which of the following is not a final electron acceptor for obligate anaerobes?
True - answer ✔✔-True or False: Beta oxidation is an alternative to the Kreb's cycle
NO3- - answer ✔✔-In denitrificaiton ___________ is the final electron acceptor.
chemotrophs - answer ✔✔-Prokaryotes that obtain their energy from chemical compounds are called
O2 - answer ✔✔-Which of the following is a final e- acceptor for obligate aerobes?
chemoautotrophs - answer ✔✔-Which of the following obtain energy by oxidizing inorganic substances
to obtain energy that is used, in part, to fix carbon dioxide?
phototroph - answer ✔✔-A prokaryote that obtains energy from light is a(n)
False - answer ✔✔-True or False: Anaerobic respiration never uses an electron transport chain
less - answer ✔✔-At low temperatures, membranes become ________ fluid unless they are able to
modify their composition.
2 - answer ✔✔-Halophytes require a salt concentration of at least _______Molarity.
relatively late reproduction - answer ✔✔-Which of the following is NOT a characteristic of a r selected
species?
A - answer ✔✔-These test tubes each contain a prokaryote community (red shapes) that are
congregating in the environment that optimizes their growth. Which community best illustrates a
community of anaerobic prokaryotes?
inoculum - answer ✔✔-The initial cells added to a batch culture are called which of the following?
Halotolerant - answer ✔✔-organisms do not require high salt concentrations for growth but can grow in
salty environments.
extreme halophiles - answer ✔✔-Which type of microbes thrive in the Great Salt Lake?
D - answer ✔✔-These test tubes each contain a prokaryote community (red shapes) that are
congregating in the environment that optimizes their growth. Which community best illustrates a
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ASSESSMENT TEST FULLY DETAILED AND
VERIFIED
endergonic - answer ✔✔-A chemical reaction that has a positive ΔG is best described as
changing the shape of the enzyme's active site - answer ✔✔-A noncompetitive inhibitor decreases the
rate of an enzyme reaction by
not affected by the presence of an enzyme - answer ✔✔-Gibbs free energy change is
catabolic pathways - answer ✔✔-What is the term for metabolic pathways that release stored energy
by breaking down complex molecules?
kinetic - answer ✔✔-Consider a pendulum swinging. Which type(s) of energy is/are associated with the
pendulum in the following instance: the moment that it is in the middle between the two ends?
increase the rate of a reaction by lowering the activation energy barrier - answer ✔✔-Enzymes
They break large molecules into smaller parts and produce energy. - answer ✔✔-Which is usually true
of catabolic pathways?
potential - answer ✔✔-Consider a pendulum swinging. Which type(s) of energy is/are associated with
the pendulum in the following instance: the moment at which it completes one cycle, just before it
begins to fall back towards the other end.
enzyme - answer ✔✔-Which of the following is considered a catalyst?
eat causes the reactants to move faster and collide more often. - answer ✔✔-How do high
temperatures speed chemical reactions?
glycolysis - answer ✔✔-Which process in eukaryotic cells will proceed normally whether oxygen (O2)
is present or absent?
glucose - answer ✔✔-What carbon source(s) can yeast cells metabolize under anaerobic conditions to
make ATP?
lactic acid fermentation - answer ✔✔-Which of the following fermentation methods can occur in animal
skeletal muscles?
A complex that uses a proton gradient to drive the synthesis of adenosine triphosphate (ATP) - answer
✔✔-What is ATP synthase?
citric acid cycle - answer ✔✔-Which stage of aerobic respiration produces most of the NADH
molecules?
Without electron transport, protons cannot be pumped across the inner mitochondrial membrane.
Without a proton gradient, adenosine triphosphate (ATP) synthase cannot synthesize ATP. - answer
✔✔-Cyanide is a toxic molecule that can kill animals in a few minutes. It binds to cytochrome c oxidase
GRADESMORE.COM
, near the end of the electron transport chain in the mitochondrion. This prevents electrons from being
transported to oxygen. Why does this usually result in cell death?
produce ethanol. - answer ✔✔-Yeast cells tend to create anaerobic conditions and therefore
three - answer ✔✔-Each pyruvate molecule contains how many carbon atoms?
glycolysis and fermentation - answer ✔✔-Which of the following can occur in the cytosol of a
eukaryotic cell?
glycolysis. - answer ✔✔-In all cells, glucose metabolism begins with
True - answer ✔✔-True or False: Some prokaryotes use O2 as a final e- acceptor
Chemoheterotroph: uses chemical energy and an organic carbon source
Photoautotroph: uses light energy and inorganic carbon source
Chemoautotroph: uses chemical energy and an inorganic carbon source
Photoheterotroph: uses light energy and an organic carbon source - answer ✔✔-Match each
description with the best definition
O2 - answer ✔✔-Which of the following is not a final electron acceptor for obligate anaerobes?
True - answer ✔✔-True or False: Beta oxidation is an alternative to the Kreb's cycle
NO3- - answer ✔✔-In denitrificaiton ___________ is the final electron acceptor.
chemotrophs - answer ✔✔-Prokaryotes that obtain their energy from chemical compounds are called
O2 - answer ✔✔-Which of the following is a final e- acceptor for obligate aerobes?
chemoautotrophs - answer ✔✔-Which of the following obtain energy by oxidizing inorganic substances
to obtain energy that is used, in part, to fix carbon dioxide?
phototroph - answer ✔✔-A prokaryote that obtains energy from light is a(n)
False - answer ✔✔-True or False: Anaerobic respiration never uses an electron transport chain
less - answer ✔✔-At low temperatures, membranes become ________ fluid unless they are able to
modify their composition.
2 - answer ✔✔-Halophytes require a salt concentration of at least _______Molarity.
relatively late reproduction - answer ✔✔-Which of the following is NOT a characteristic of a r selected
species?
A - answer ✔✔-These test tubes each contain a prokaryote community (red shapes) that are
congregating in the environment that optimizes their growth. Which community best illustrates a
community of anaerobic prokaryotes?
inoculum - answer ✔✔-The initial cells added to a batch culture are called which of the following?
Halotolerant - answer ✔✔-organisms do not require high salt concentrations for growth but can grow in
salty environments.
extreme halophiles - answer ✔✔-Which type of microbes thrive in the Great Salt Lake?
D - answer ✔✔-These test tubes each contain a prokaryote community (red shapes) that are
congregating in the environment that optimizes their growth. Which community best illustrates a
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