BBL LESSON 8: OXIDATIVE
PHOSPHORYLATION QUESTIONS AND
VERIFIED ANSWERS|100%
CORRECT|GRADE A+
During which phase of cellular respiration does the majority of ATP production occur?
A. during glycolysis
B. during operation of the TCA cycle
C. during operation of the electron transport chain
D. during oxidative phosphorylation - ANSWER D. during oxidative phosphorylation
Approximately how much ATP is stored in the human body at any given time and approximately how
much ATP does the human body need to produce daily?
A. 200-300 mg - 80 g
B. 200-300 g - 80 g
C. 200-300 mg - 80 kg
D. 200-300 g - 80 kg - ANSWER D. 200-300 g - 80 kg
How much ATP is generated per glucose molecule by the 6 NADH and 2 FADH2 produced during the TCA
cycle that enter into oxidative phosphorylation?
A. 9
B. 18
C. 30
D. 38 - ANSWER B. 18
Where in the cell does oxidative phosphorylation occur?
A. Cytosol
B. Outer mitochondrial membrane
C. Inner mitochondrial membrane
D. Mitochondrial matrix - ANSWER C. Inner mitochondrial membrane
, The NADH generated by glycolysis is transported into mitochondria by
A. diffusion
B. selective permeability
C. metabolic shuttles
D. all of the above - ANSWER C. metabolic shuttles
Which of the following energetic processes drives the formation of a proton gradient across the inner
mitochondrial membrane during oxidative phosphorylation?
A. ATP hydrolysis
B. ATP synthesis
C. ADP transport
D. Electron transfer - ANSWER D. Electron transfer
What is the most common rate-limiting substrate in oxidative phosphorylation?
A. succinate
B. acetate
C. glucose
D. ADP - ANSWER D. ADP
The function of the cytochromes in the electron transport chain is
A. to transport electrons via reversible oxidation-reduction of iron
B. to prevent oxidation of iron
C. to enable iron to bind oxygen
D. to catalyze the formation of NADH - ANSWER A. to transport electrons via reversible oxidation-
reduction of iron
How many moles of ATP are generated by the oxidation of one mole of NADH during oxidative
phosphorylation?
A. 1.5
PHOSPHORYLATION QUESTIONS AND
VERIFIED ANSWERS|100%
CORRECT|GRADE A+
During which phase of cellular respiration does the majority of ATP production occur?
A. during glycolysis
B. during operation of the TCA cycle
C. during operation of the electron transport chain
D. during oxidative phosphorylation - ANSWER D. during oxidative phosphorylation
Approximately how much ATP is stored in the human body at any given time and approximately how
much ATP does the human body need to produce daily?
A. 200-300 mg - 80 g
B. 200-300 g - 80 g
C. 200-300 mg - 80 kg
D. 200-300 g - 80 kg - ANSWER D. 200-300 g - 80 kg
How much ATP is generated per glucose molecule by the 6 NADH and 2 FADH2 produced during the TCA
cycle that enter into oxidative phosphorylation?
A. 9
B. 18
C. 30
D. 38 - ANSWER B. 18
Where in the cell does oxidative phosphorylation occur?
A. Cytosol
B. Outer mitochondrial membrane
C. Inner mitochondrial membrane
D. Mitochondrial matrix - ANSWER C. Inner mitochondrial membrane
, The NADH generated by glycolysis is transported into mitochondria by
A. diffusion
B. selective permeability
C. metabolic shuttles
D. all of the above - ANSWER C. metabolic shuttles
Which of the following energetic processes drives the formation of a proton gradient across the inner
mitochondrial membrane during oxidative phosphorylation?
A. ATP hydrolysis
B. ATP synthesis
C. ADP transport
D. Electron transfer - ANSWER D. Electron transfer
What is the most common rate-limiting substrate in oxidative phosphorylation?
A. succinate
B. acetate
C. glucose
D. ADP - ANSWER D. ADP
The function of the cytochromes in the electron transport chain is
A. to transport electrons via reversible oxidation-reduction of iron
B. to prevent oxidation of iron
C. to enable iron to bind oxygen
D. to catalyze the formation of NADH - ANSWER A. to transport electrons via reversible oxidation-
reduction of iron
How many moles of ATP are generated by the oxidation of one mole of NADH during oxidative
phosphorylation?
A. 1.5
