Electron is donated to the mitochondrial ETC at the lowest energy level by:

1. Glucose 2. NADH
3. ATP 4. FADH2

Subtopic:  ETS |

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The source of oxygen for the synthesis of water in oxidative phosphorylation is:
1. carbon dioxide
2. glucose
3. molecular oxygen
4. pyruvate

Subtopic:  Oxidative Phosphorylation |
 67%

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When electron pass downhill in the ETC, the energy released is used to pump protons into:
1. matrix of mitochondria
2. cytosol
3. mitochondrial inner membrane
4. mitochondrial intermembrane space

Subtopic:  ETS |
 54%

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ATP synthesis during oxidative phosphorylation in mitochondria is directly driven by:
1. oxidation of glucose.
2. electron transport downhill in the ETC.
3. terminal transfer of electrons to oxygen.
4. chemiosmosis.

Subtopic:  ETS |
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ATP synthase is located in the mitochondrial:

1. matrix 2. electron transport chain
3. outer membrane 4. inner membrane
Subtopic:  ETS |
 66%
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Isolated inner membrane of mitochondria can carry out:
1. the citric acid cycle
2. oxidative phosphorylation
3. glycolysis and fermentation
4. reduction of NAD+

Subtopic:  ETS |
 74%

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The number of oxygen molecules required each time a molecule of glucose is completely oxidized via aerobic respiration is:

1. 1 2. 2
3. 6 4. 12
Subtopic:  Introduction |
 60%
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Let us say there are 30 NADH and 12 FADH2 in a mitochondrion. What is the maximum number of ATP generated if all dinucleotides are used in chemiosmosis?

1. 42 2. 84
3. 114 4. 142
Subtopic:  Aerobic Respiration |
 83%

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Identify the incorrectly matched pair:

Component of ETC Name
1. Complex I NADH dehydrogenase
2. Complex II Succinate dehydrogenase
3. Complex III Cytochrome b6f complex
4. Complex IV Cytochrome c oxidase
Subtopic:  ETS |
 75%
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The correct chronological sequence of the stages of the glycolytic pathway is:

1. glucose priming, cleavage and rearrangement, oxidation, ATP generation
2. cleavage and rearrangement, glucose priming, ATP generation, oxidation
3. glucose priming, oxidation, cleavage and rearrangement, ATP generation
4. ATP generation, oxidation, glucose priming, cleavage and rearrangement
Subtopic:  Glycolysis |
 60%
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