A) in order to regenerate NAD+
B) because lactate is needed to produce ATP
C) because pyruvate is toxic to the cells
D) in order to use lactate in the citric acid cycle
E) because the conversion provides much more ATP for the cell
G) None of the above
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A) matrix - electron transport chain
B) cristae - preparatory reaction
C) matrix - citric acid cycle
D) matrix - glycolysis
E) cristae - glycolysis
G) A) and C)
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A) The end product of glycolysis is pyruvate.
B) The citric acid cycle begins and ends with pyruvate.
C) NADH2 will eventually produce three ATP molecules.
D) Aerobic respiration of glucose has four phases.
E) Aerobic respiration uses oxygen and releases carbon dioxide.
G) None of the above
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A) a C4 molecule.
B) pyruvate.
C) lactate.
D) glucose.
E) RuBP.
G) All of the above
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A) 6 NADH, 4 CO2, 2 ATP, 2 FADH2
B) 3 NADH, 2 CO2, ATP, FADH2
C) 2 acetyl - CoA & 2 CO2
D) 6 NADH, 2 CO2, 4 ATP, 6 FADH2
E) 2 pyruvates, 2 NADH, 2 ADH, and 4 ATP
G) A) and E)
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A) photosynthesis
B) glycolysis
C) glycolysis and the citric acid cycle
D) photosynthesis and the citric acid cycle
E) glycolysis, the citric acid cycle, and the electron transport chain
G) A) and C)
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A) It connects glycolysis to the citric acid cycle.
B) CO2 is given off.
C) Pyruvate is converted to a 2-carbon acetyl group.
D) NAD+ goes to NADH + H+ as acetyl-CoA forms.
E) The reaction occurs once per glucose molecule.
G) D) and E)
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Correct Answer
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A) The energy content of the reactants (glucose and O2) must equal the energy content of the products (CO2 and H2O) .
B) The energy content of the reactants (glucose and O2) must be greater than the energy content of the products (CO2 and H2O) .
C) The energy content of the reactants (glucose and O2) must be less than the energy content of the products (CO2 and H2O) .
D) There is no relationship between the energy content of the reactants (glucose and O2) and the energy content of the products (CO2 and H2O) .
E) There is no relationship between O2 and H2O, but the energy content of glucose is less than that of CO2.
G) A) and D)
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Correct Answer
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A) 2 pyruvate, 2 ATP, and 2 NADH + H+.
B) 1 pyruvate and 2 ATP.
C) 1 pyruvate and 2 NADH + H+.
D) 2 ATP and 2 NADH + H+.
E) 2 pyruvate.
G) A) and E)
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A) It accepts 2 electrons.
B) It is a coenzyme.
C) It helps to oxidize the substrate.
D) It is reduced.
E) It provides the energy for the reaction.
G) B) and D)
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A) no oxygen is available.
B) no water is available.
C) no carbon dioxide is available.
D) no ATP is available.
E) no pyruvate is available.
G) A) and B)
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A) accumulation of ATP in the mitochondrial matrix
B) accumulation of NADH in the mitochondrial matrix
C) no energy to pump hydrogen ions into the intermembrane space of a mitochondrion
D) reversal of the hydrogen ion gradient
E) immediate blockage of the cytochrome molecules
G) All of the above
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Correct Answer
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