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 |
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What process in aerobic respiration generates maximum ATP?
1. | substrate-level phosphorylation | 2. | chemiosmosis |
3. | Krebs cycle | 4. | Pyruvate decarboxylation |
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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
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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 |
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Oxidative decarboxylation of pyruvate produces:
1. | 2. Citrate |
3. Acetyl-CoA | 4. G3P |
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What is the end product of glycolysis?
1. NADH | 2. ATP |
3. G3P | 4. Pyruvate |
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Which of the following exhibits the highest rate of respiration?
1. Growing shoot apex | 2. Germinating seed |
3. Root tip | 4. Leaf bud |
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The respiratory pathway is best described as:
1. | Catabolic | 2. | Anabolic |
3. | Amphibolic | 4. | Amphipathic |
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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 |
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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 |
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