Cytochrome c is found:
1. attached to outer surface of the inner mitochondrial membrane
2. attached to inner surface of the inner mitochondrial membrane
3. in the inter membrane space
4. in the mitochondrial matrix

Subtopic:  ETS:2 | ETS:1 | ETS |
 71%
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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 |
 92%
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The stage of cellular respiration that directly involves oxygen is:

1. glycolysis
2. at the end of ETC
3. Krebs cycle
4. the phosphorylation of ADP to form ATP
Subtopic:  ETS |
 81%
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The correct sequence of flow of electrons downhill in the mitochondrial electron transport chain would be:
1. ubiquinone, cytochromes, FMN, Fe-S
2. cytochromes, FMN, ubiquinone, Fe-S
3. Fe-S, FMN, cytochromes, ubiquinone
4. FMN, Fe-S, ubiquinone, cytochromes

Subtopic:  ETS |
 64%
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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 |
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Identify the incorrectly matched pair:
Respiratory Complex Pathway for electron transport
1. NADH dehydrogenase NADH – FMN – [Fe-S] – Q
2. Succinic dehydrogenase FADH2 – FMN - Q
3. Cytochrome bc1 Cyt b – [Fe-S] – Cyt c1
4. Cytochrome c oxidase CuA – Cyt a – Cyt a3 – CuB
Subtopic:  ETS |
 57%
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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 |
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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 |
 64%
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