The number of ATP molecules synthesized from oxidation of one molecule of NADH and one molecule of FADH2 are respectively:

1. 3 and 2 2. 2 and 3
3. 1 and 1 4. 2 and 1

Subtopic:  ETS:2 | ETS:1 | ETS |
 93%
From NCERT
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Oxygen drives the process of ATP production via ETS. The best explanation for this would be that oxygen:
1. is needed at the end of the aerobic respiration
2. is the terminal electron donor
3. is not required in the glycolytic pathway
4. acts as the final hydrogen acceptor

Subtopic:  Oxidative Phosphorylation |
 75%
From NCERT
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For each ATP produced, what is the number of H+ that passes through F0 from the intermembrane space to the matrix down the electrochemical proton gradient?
1. 1
2. 2
3. 3
4. 4

Subtopic:  Amphibolic Nature of Respiration | ETS:2 | ETS:1 | ETS |
From NCERT
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According to NCERT textbook, what is the number of ATP molecules that can be regarded as a net gain during aerobic respiration of one molecule of glucose?

1. 2 2. 30
3. 36 4. 38
Subtopic:  Aerobic Respiration | ETS:2 | ETS:1 | ETS |
 72%
From NCERT
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What is the number of ATP molecules produced when pyruvate is converted to lactate by fermentation?

1. 0 2. 2
3. 4 4. 38
Subtopic:  Fermentation |
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If fatty acids were to enter the respiratory pathway, they must be converted to a molecule with:

1. Two carbons 2. Three carbons
3. Five carbons 4. Six carbons
Subtopic:  Aerobic Respiration | Respiratory Quotient | ETS:2 | ETS:1 | ETS |
 65%
From NCERT
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The respiratory pathway is best described as:

1. Catabolic 2. Anabolic
3. Amphibolic 4. Amphipathic
Subtopic:  Aerobic Respiration |
 93%
From NCERT
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The correct descending order of the RQ value, when carbohydrates, proteins and fats are used as respiratory substrate would be:
1. Protein ˃ Fats ˃ Carbohydrates
2. Protein ˃ Carbohydrates ˃ Fats
3. Carbohydrates ˃ Protein ˃ Fats
4. Fats ˃ Carbohydrates ˃ Protein

Subtopic:  Respiratory Quotient |
 84%
From NCERT
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Phosphorylation of glucose during glycolysis is catalysed by

1. Phosphoglucomutase 2. Phosphoglucoisomerase
3. Hexokinase 4. Phosphorylase
Subtopic:  Glycolysis |
 87%
From NCERT
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Pyruvic acid, the key product of glycolysis can have many metabolic fates. Under aerobic condition, it forms

1. Lactic acid 2. CO2 + H2O
3. Acetyl CoA + CO2 4. Ethanol + CO2
Subtopic:  Aerobic Respiration |
 59%
From NCERT
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