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Final Jeopardy
AP Biology
Energy
And
Metabolism
Rules!
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Which of the following can be used to
determine the rate of an enzymecatalyzed reaction?
A.The rate of substrate formation
B. The decrease in temperature
C.The rate of enzyme formation
D.The rate of enzyme consumption
E. The rate of substrate consumption
E. The rate of substrate consumption
Substrate is used up as the product is
formed; thus the product can be used
as a measure of the rate of reaction
Which of the following best describes the
reaction shown below?
A+B
A.Hydrolysis
B. An exergonic reaction
C.An endothermic reaction
D.Catabolism
E. An endergonic reaction
AB + energy
B. An exergonic reaction
The reaction is exergonic because it
releases energy
The role of oxygen in aerobic respiration
is:
A. To transport CO2
B. Most important in the Krebs cycle
C. To transport electrons in glycolysis
D. To provide electrons for the ETC
E. Final electron acceptor in the ETC
E. Final electron acceptor in the ETC
The loss of hydrogen is known as:
A.Dehydration
B.Hydrogenation
C.Reduction
D.Oxidation
E.Both B and D
D. Oxidation
Remember, LEO the lion says GER
C6H12O6 + 6O2
6H2O + 6CO2 + 38ATP
The process shown is:
A.Reduction and endergonic
B.Reduction ad exergonic
C.Oxidation and endergonic
D.Oxidation and exergonic
E.Neither reduction or oxidation
D. Oxidation and exergonic
The reaction is oxidation because
carbon loses hydrogen atoms and it is
exergonic because energy is released
All of the following processes produce
ATP except
A.Lactic acid formation
B.Oxidative phosphorylation
C.Glycolysis
D.The Krebs cycle
E.The electron transport chain
A. Lactic acid formation
All other processes are parts of cellular
respiration and produce some
energy
After strenuous exercise, a muscle cell would
contain decreased amounts of ________
and increased amounts of ___________
A. Glucose; ATP
B. ATP; glucose
C. ATP; lactic acid
D. Lactic acid; ATP
E. CO2; pyruvic acid
C. ATP; lactic acid
During sustained strenuous exercise,
muscle cells use up ATP and oxygen
rapidly and start to carry out
anaerobic respiration.
Match the process with its location
1. Glycolysis
A. Cristae membrane
2. ETC
B. Cytoplasm
3. Krebs cycle
C. Inner matrix of the
mitochondria
1. B; Glycolysis occurs in the
cytoplasm
2. A; The electron transport chain
occurs in the folded membranes, or
cristae, of the mitochondria
3. C; The Krebs cycle occurs in the
matrix of the mitochondria
Which of the following is the most important
thing that happens during aerobic
respiration?
A. Electrons move down the ETC in a series of
redox reactions
B. Acetyl CoA enters the Kreb cycle
C. NAD carries hydrogen to the ETC
D. ATP is produced
E. CO2 is produced in the Krebs cycle
D. ATP is produced
All other processes occur in cellular
respiration, but ATP production is the
most important event in respiration.
The ATP produced during fermentation is
generated by which of the following?
A.The electron transport chain
B. Substrate level phosphorylation
C.The Krebs cycle
D.Chemiosmosis
E. The citric acid cycle
B. Substrate level phosphorylation
This process produces the ATP in
glycolysis and the Krebs cycle and
subsequently during fermentation
In addition to ATP, what is produced
during glycolysis?
A. Pyruvate and NADH
B. CO2 and H2O
C. CO2 and ethyl alchohol
D. CO2 and NADH
E. H2O and ethyl alchohol
A.Pyruvate and NADH
ATP, NADH, and two pyruvates are
the end products of glycolysis.
It’s vital to know the reactants and
products for each process of cellular
respiration and photosynthesis!
Which of the following probably
evolved first?
A.The Krebs cycle
B.Oxidative phosphorylation
C.Glycolysis
D.The electron transport chain
E.The citric acid cycle
C. Glycolysis
Glycolysis occurs in the first phase of
cellular respiration and does not
require oxygen. The first organisms on
earth were probably anaerobic because
no free oxygen was available in the
atmosphere.
Which process of cell respiration is most
closely associated with intracellular
membranes?
A.Fermentation
B. The Krebs cycle
C.Glycolysis
D.Substrate level phosphorylation
E. Oxidative phosphorylation
E. Oxidative phosphorylation
This process occurs as protons flow
through ATP synthetase on the cristae
(membrane) of the mitochondria
During cell respiration, most ATP is formed as
a direct result of the net movement of:
A. Sodium ions diffusing through a membrane
B. Electrons flowing against a gradient
C. Electrons flowing through a channel protein
D. Protons flowing through a channel protein
E. Protons flowing against a gradient
D. Protons flowing through a channel
Most ATP is formed through protons,
or hydrogen ions, flowing through the
ATP synthetase channel
Plants give off oxygen as a by-product of
photosynthesis. This oxygen comes
from:
A.The Krebs cycle
B. The Calvin cycle
C.Photolysis
D.Photorespiration
E. Cyclic photophosphorylation
C. Photolysis
The oxygen comes from the split water
molecule at the beginning of
photosynthesis. The water is split by
solar energy.
Indicate in which process each occurs:
(1)light-dependent
(2) light-independent
A. Oxygen is released
B. Carbon gets converted into sugar
C. Oxidative phosphorylation
D. ATP produced
E. Electrons flow through an ETC
F. Oxidation of NADPH to NADP
1. A, C, D, E
2. B, F
CAM plants keep their stomates close
during the daytime to reduce water loss.
They can do this because:
A. Can fix CO2 into sugars in the mesophyll
B. Can use photosystems I and II at night
C. Modify rubisco to not bind with oxygen
D. Can incorporate CO2 into organic acid at
night
E. Have lenticels instead of stomates
D. Can incorporate CO2 into organic
acids at night
During the night, CAM plants fix
carbon dioxide into a variety of
organic acids and are stored until the
daytime to be used
Which one of the following is NOT
required for photosynthesis to occur?
A.CO2
B.O2
C.ATP
D.NADP
E.All of the above are required
B. O2
All of the other materials are required,
except oxygen, which is a by-product
of photosynthesis
Which of the following terms refers to
chemical reactions in which energy is
released?
A.Endergonic
B.Endothermic
C.Exergonic
D.Exothermic
E.Exothalmic
C. Exergonic
Remember, endergonic reactions
require energy, and exergonic release
energy.
Which of the following is used to explain the
interaction between the active site of an
ezyme and its substrate?
A. Michaelis-Menten
B. Endosymbiont
C. Induced fit
D. Pressure-flow
E. Danielli
C. Induced fit
Each enzyme is specially structured to
allow its substrate to “fit” and bind to
the active site
Which of the following is correct?
A. Substrates fit into the active site of an
enzyme
B. Enzymes fit into the active site of a
substrate
C. Active sites are at the top of the substrate
D. Enzymes have smooth surfaces
E. Substrates are larger than enzymes
A.Substrates fit into the active site of
an enzyme
Which of the following would NOT cause an
enzyme to denature?
A. Raising the temperature of the enzyme
10°C
B. Lowering the temperature of the enzyme
10°C
C. Raising or lowering the pH of the enzyme
D. Adding heavy metals to a solution
containing the enzyme
B. Lowering the temperature of the
enzyme 10°C
A lower temperature may slow a
reaction, but would not denature the
enzyme
Which enzyme used in the Calvin cycle
can bind with both CO2 and O2?
A.Oxido-reductase
B.RuBP (rubisco) carboxylase
C.Transferase
D.Reverse transcriptase
E.DNA polymerase
B. RuBP carboxylase
Remember, RuBP, or rubisco, is the
main enzyme of the Calvin cycle
Solar energy is absorbed and water is
split during:
A.The light-dependent reactions
B.The light-independent reactions
C.The Krebs cycle
D.The Calvin cycle
E.The CAM reactions
A.The light-dependent reactions
The light-dependent reactions depend
on solar energy to occur
What process occurs when oxygen, instead
of carbon dioxide, combines with RuBP
carboxylase?
A.Calvin cycle
B. Krebs cycle
C.Glycolysis
D.Photosynthesis
E. Photorespiration
E. Photorespiration
Plants undergo alternate forms of
photosynthesis to avoid photorespiration
Make your wager
A.State the first two laws of
thermodynamics
B.Explain how the processes of
photosynthesis and cellular respiration
follow these laws
(Hint: Think about how energy is
changed and is lost in the reactions)
Final Question