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Coomes CELLULAR RESPIRATION: PRACTICE QUESTIONS PRE-AP BIOLOGY 1. How do cells capture the energy released by cellular respiration? A) They produce ATP. B) They produce glucose. C) They store it in molecules of carbon dioxide. D) The energy is coupled to oxygen. E) None of the choices are correct. 2. Respiration __________, and cellular respiration __________. A) produces ATP . . . is gas exchange B) is gas exchange . . . produces ATP C) produces glucose . . . produces oxygen D) uses glucose . . . produces glucose E) produces glucose . . . is gas exchange 3. Which of the following statements is/are true about the energy yields from cellular respiration? A) Cellular respiration is more efficient at harnessing energy from glucose than car engines are at harnessing energy from gasoline. B) Cellular respiration converts all of the energy in glucose into high-energy ATP bonds. C) Cellular respiration converts the kinetic energy of glucose into chemical energy. D) The heat produced during cellular respiration is only a tiny fraction of the chemical energy available in a glucose molecule. E) All of the choices are true. 4. The overall equation for the cellular respiration of glucose is A) C5H12O6 + 6 O2 → 5 CO2 + 6 H2O + energy. B) 5 CO2 + 6 H2O → C5H12O6 + 6 O2 + energy. C) C6H12O12 + 3 O2 → 6 CO2 + 6 H2O + energy. D) C6H12O6 + 6 O2 → 6 CO2 + 6H22O + energy. E) None of the choices are correct. 5. During cellular respiration, NADH A) is converted to NAD+ by an enzyme called dehydrogenase. B) is chemically converted into ATP. C) is reduced to form NAD +. D) delivers its electron load to the first electron carrier molecule. E) None of the choices are correct. 6. The functioning of an electron transport chain is analogous to A) a Slinky toy going down a flight of stairs. B) a canoe going over a waterfall. C) a person climbing a flight of stairs one step at a time. Coomes D) a person leaping from the top to the bottom of a flight of stairs in one jump. E) playing Ping-Pong. 7. A drug is tested in the laboratory and is found to create holes in both mitochondrial membranes. Scientists suspect that the drug will be harmful to human cells because it will inhibit A) the citric acid cycle. B) oxidative phosphorylation. C) glycolysis. D) the formation of alcohol. E) the citric acid cycle and oxidative phosphorylation. 8. Glycolysis is considered to be an ancient metabolic system because A) it does not require oxygen. B) is not located in a membrane-bound organelle. C) it occurs universally. D) More than one of the choices are correct. E) None of the choices are correct. 9. Which of the following is a result of glycolysis? A) conversion of FAD to FADH2 B) production of CO2 C) conversion of glucose to two three-carbon compounds D) a net loss of two ATPs per glucose molecule E) conversion of NADH to NAD + 10. Between glycolysis and the citric acid cycle, A) pyruvate is oxidized while a molecule of NAD+ is reduced to NADH. B) a carbon atom is added to make a four-carbon compound. C) coenzyme A is cleaved off of the four-carbon compound. D) More than one of the choices is correct. E) None of the choices are correct. 11. The end products of the citric acid cycle include all of the following except A) CO2. B) pyruvic acid. C) ATP. D) NADH. E) FADH2. 12. At the end of the citric acid cycle, most of the energy remaining from the original glucose is stored in A) CO2. B) pyruvic acid. C) ATP. D) NADH. E) FADH2. Coomes 13. Which of the following statements about the inner mitochondrial membrane is false? A) ATP synthase is associated with it. B) It plays a role in the production of pyruvic acid. C) Electron carriers are associated with it. D) It is involved in chemiosmosis. E) A gradient of H+ exists across it.