Respiration Quiz 1
1. Of the following processes, which does NOT require oxygen to occur?
A. glycolysis
B. preparatory
C. electron transport system
D. citric acid cycle
E. All of these require oxygen
A. glycolysis
B. preparatory
C. electron transport system
D. citric acid cycle
E. All of these require oxygen
2. Complete oxidative breakdown of glucose results in ______ ATP molecules.
A. 36
B. 2
C. 39
D. 4
E. 32
A. 36
B. 2
C. 39
D. 4
E. 32
3. Which is NOT an end product of eukaryotic cellular aerobic respiration?
A. All of the choices are correct.
B. ATP.
C. carbon dioxide.
D. oxygen
E. water.
A. All of the choices are correct.
B. ATP.
C. carbon dioxide.
D. oxygen
E. water.
4. Which process produces both NADH and FADH2?
A. the preparatory reaction
B. the electron transport system
C. glycolysis
D. fermentation
E. the citric acid cycle
A. the preparatory reaction
B. the electron transport system
C. glycolysis
D. fermentation
E. the citric acid cycle
5. Which process converts pyruvate to acetyl-CoA?
A. fermentation
B. the electron transport system
C. the preparatory reaction
D. glycolysis
E. the citric acid cycle
A. fermentation
B. the electron transport system
C. the preparatory reaction
D. glycolysis
E. the citric acid cycle
6. Letter "a" is pointing to the location of the
A. electron transport chain
B. citric acid cycle
C. glycolysis reactions
D. calvin cycle
E. generaton of NADH
A. electron transport chain
B. citric acid cycle
C. glycolysis reactions
D. calvin cycle
E. generaton of NADH
7. Some bacteria are strict aerobes and others are strict anaerobes. Some bacteria, however, are facultative anaerobes and can live with or without oxygen. If given the choice of using oxygen or not, which should a facultative anaerobe perform?
A. It doesn't matter; both processes will produce the same results.
B. Use oxygen because aerobic metabolism is easier.
C. Not use oxygen since it is a facultative anaerobe, it doesn't tolerate oxygen well.
D. None of these is correct.
E. Use oxygen since aerobic metabolism provides more ATP per molecule of carbohydrate broken down than anaerobic metabolism.
A. It doesn't matter; both processes will produce the same results.
B. Use oxygen because aerobic metabolism is easier.
C. Not use oxygen since it is a facultative anaerobe, it doesn't tolerate oxygen well.
D. None of these is correct.
E. Use oxygen since aerobic metabolism provides more ATP per molecule of carbohydrate broken down than anaerobic metabolism.
8. Which process reduces molecular oxygen to water?
A. the citric acid cycle
B. glycolysis
C. the electron transport system
D. fermentation
E. the preparatory reaction
A. the citric acid cycle
B. glycolysis
C. the electron transport system
D. fermentation
E. the preparatory reaction
9. Which process produces alcohol or lactate?
A. the preparatory reaction
B. glycolysis
C. fermentation
D. the electron transport system
E. the citric acid cycle
A. the preparatory reaction
B. glycolysis
C. fermentation
D. the electron transport system
E. the citric acid cycle
10. Which is NOT true of the citric acid cycle?
A. Must occur twice for each glucose molecule metabolized.
B. Occurs in the cristae of the mitochondria.
C. Produces 2 ATP by substrate-level phosphorylation
D. Produces 6 NADH per glucose.
E. Produces 4 carbon dioxide molecules per glucose molecule.
A. Must occur twice for each glucose molecule metabolized.
B. Occurs in the cristae of the mitochondria.
C. Produces 2 ATP by substrate-level phosphorylation
D. Produces 6 NADH per glucose.
E. Produces 4 carbon dioxide molecules per glucose molecule.
11. For fatty acids to be able to enter the pathways of cellular respiration, they must be
A. be converted into five-carbon sugars.
B. deaminated.
C. broken into acetyl groups.
D. combined with ATP.
E. combined with glycerol.
A. be converted into five-carbon sugars.
B. deaminated.
C. broken into acetyl groups.
D. combined with ATP.
E. combined with glycerol.
12. The electron transport system produces ______ATP from each NADH and/or _________ATP from each flavin mononucleotide entering the system.
A. 4: 2
B. 3: 2
C. 2: 4
D. 2: 3
E. 4: 3
A. 4: 2
B. 3: 2
C. 2: 4
D. 2: 3
E. 4: 3
13. About _____ of the energy in the glucose molecule is captured in ATP through the reactions of cellular respiration.
A. 12%
B. 26%
C. 57%
D. 84%
E. 39%
A. 12%
B. 26%
C. 57%
D. 84%
E. 39%
14. The large number of ATPs produced are
A. outside the mitochondria and enter through a channel protein.
B. outside the mitochondria and diffuse in through the membrane.
C. embedded in the cristae membranes and diffuse both directions.
D. inside the mitochondria matrix and diffuse out through the membrane.
E. inside the mitochondria matrix and leave through a channel protein.
A. outside the mitochondria and enter through a channel protein.
B. outside the mitochondria and diffuse in through the membrane.
C. embedded in the cristae membranes and diffuse both directions.
D. inside the mitochondria matrix and diffuse out through the membrane.
E. inside the mitochondria matrix and leave through a channel protein.
15. Why would an organism utilize fermentation if it was wasteful of the energy in food molecules and posed the threat of killing itself with high levels of toxic alcohol?
A. All of the choices are advantages.
B. None of the choices is an advantage; anaerobes only survive where aerobes cannot.
C. If glucose levels are not high, there may be time to disperse the alcohol "waste."
D. Fermentation can provide a rapid burst of ATP since it does not have to go through the full breakdown cycle.
E. The organism can survive short spells of anaerobic conditions and maintain growth and reproduction.
A. All of the choices are advantages.
B. None of the choices is an advantage; anaerobes only survive where aerobes cannot.
C. If glucose levels are not high, there may be time to disperse the alcohol "waste."
D. Fermentation can provide a rapid burst of ATP since it does not have to go through the full breakdown cycle.
E. The organism can survive short spells of anaerobic conditions and maintain growth and reproduction.
16. The energy stored in 36 ATP molecules produced by aerobic respiration is 39 percent of the energy available in a six-carbon glucose and the other 61% of the glucose bond energy is lost. The respiration of an 18-carbon fatty acid produces 216 ATP. We can expect that
A. because the molecules are so large, fats are an inefficient form of stored energy.
B. the degradation of a fatty acid is totally unrelated to the citric acid cycle.
C. None of these statements is true.
D. six times as much energy was stored in this molecule but also a similar proportion is lost.
E. this respiration pathway must occur in some cell organelle besides the mitochondrion.
A. because the molecules are so large, fats are an inefficient form of stored energy.
B. the degradation of a fatty acid is totally unrelated to the citric acid cycle.
C. None of these statements is true.
D. six times as much energy was stored in this molecule but also a similar proportion is lost.
E. this respiration pathway must occur in some cell organelle besides the mitochondrion.
17. The first process in breaking down glucose is
A. glycolysis.
B. fermentation.
C. the preparatory reaction.
D. the citric acid cycle.
E. the electron transport system.
A. glycolysis.
B. fermentation.
C. the preparatory reaction.
D. the citric acid cycle.
E. the electron transport system.
18. The carbon dioxide we exhale is produced in
A. glycolysis.
B. the Calvin cycle
C. lactate fermentation.
D. the electron transport system.
E. the citric acid cycle.
A. glycolysis.
B. the Calvin cycle
C. lactate fermentation.
D. the electron transport system.
E. the citric acid cycle.
19. Which of the following molecules can be broken down into acetyl and enter the citric acid cycle?
A. all of the choices are correct
B. amino acids
C. fatty acids
D. pyruvate
E. proteins
A. all of the choices are correct
B. amino acids
C. fatty acids
D. pyruvate
E. proteins
20. Which process must occur before fermentation?
A. glycolysis
B. fermentation
C. the citric acid cycle
D. the electron transport system
E. the preparatory reaction
A. glycolysis
B. fermentation
C. the citric acid cycle
D. the electron transport system
E. the preparatory reaction
