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6 Written Questions

6 Multiple Choice Questions

  1. The conversion of pyruvate from glycolysis to carbon dioxide and ethyl alcohol
  2. An enzyme that catalyzes a chemical reaction during which one or more hydrogen atoms are removed from a molecule
  3. An organism that only carries out fermentation; such organisms cannot use oxygen and also may be poisoned by it.
  4. Energy-coupling mechanics that uses the energy of hydrogen ion gradients across membranes to phosphorylate ADP; powers most ATP synthesis in cells
  5. The conversion of pyruvate to lactate with no release of carbon dioxide.
  6. The formation of ATP by an enzyme directly transferring a phosphate group to ADP from an organic molecule

6 True/False Questions

  1. oxidative phosphorylationThe production of ATP using energy derived from the redox reactions of an electron transport chain; the third major stage of cellular respiration


  2. citric acid cycleThe entry compound for the citric acid cycle in cellular respiration; formed from a fragment of pyruvate attached to a coenzyme


  3. redox reactionThe gain of electrons by a substance involved in a redox reaction; always accompanies oxidation


  4. reductionThe loss of electrons from a substance involved in a redox reaction; always accompanies reduction


  5. glycolysisa quantity of heat equal to 1,000 calories. Used to measure the energy content of food, it is usually called a "Calorie"


  6. intermediatesOne of the compounds that form between the initial reactant and the final product in a metabolic pathway, such as between glucose and pyruvate in glycolysis


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