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9 Cards in this Set
- Front
- Back
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Enzymes are the catalysts that drive metabolic reactions. Match the letter with the component in the schematic of enzymatic action.
A. Enzyme-Substrate Complex B. Active site C. Products D. Co-Enzyme E. Substrate |
View diagram in powerpoint
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Fatty acids are catabolized in
A) The Krebs cycle. B) The electron transport chain. C) Glycolysis. D) The pentose phosphate pathway. E) The Entner Doudoroff pathway. |
A) The Krebs cycle.
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All the following are true about substrate-level phosphorylation except
A) It involves the direct transfer of a high-energy phosphate group from an intermediate metabolic compound to ADP. B) No final electron acceptor is required. C) It occurs in glycolysis. D) The oxidation of intermediate metabolic compounds releases energy that is used to generate ATP. E) All of the above are true. |
E) All of the above are true.
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A strictly fermentative bacterium produces energy
A) By glycolysis only. B) By aerobic respiration only. C) By fermentation or aerobic respiration. D) Only in the absence of oxygen. E) Only in the presence of oxygen. |
A) By glycolysis only.
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Which of the following is the best definition of fermentation?
A) The reduction of glucose to pyruvic acid. B) The oxidation of glucose with organic molecules serving as electron acceptors. C) The complete catabolism of glucose to CO2 and H2O. D) The production of energy by substrate-level phosphorylation. E) The production of ethyl alcohol from glucose. |
B) The oxidation of glucose with organic molecules serving as electron acceptors.
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Aerobic respiration differs from anaerobic respiration in which of the following respects?
A) Anaerobic respiration is glycolysis. B) The final electron acceptors are different. C) Aerobic respiration requires the electron transport chain. D) Aerobic respiration gets electrons from the Krebs cycle. E) Aerobic respiration produces less ATP. |
B) The final electron acceptors are different.
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Uses CO2 for carbon and H2 for energy.
A) Chemoautotroph B) Chemoheterotroph C) Photoautotroph D) Photoheterotroph |
A) Chemoautotroph
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Uses glucose for carbon and energy.
A) Chemoautotroph B) Chemoheterotroph C) Photoautotroph D) Photoheterotroph |
B) Chemoheterotroph
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Assume you are working for a chemical company and you are responsible for growing a yeast culture that produces ethyl alcohol. The yeasts are growing well on the maltose medium but are not producing alcohol. The most likely explanation is
A) The maltose is toxic. B) O2 is in the medium. C) Not enough protein is provided. D) Yeasts don't produce ethyl alcohol. |
B) O2 is in the medium.
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