* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Name Date
Gaseous signaling molecules wikipedia , lookup
Fatty acid synthesis wikipedia , lookup
Butyric acid wikipedia , lookup
Mitochondrion wikipedia , lookup
Metalloprotein wikipedia , lookup
NADH:ubiquinone oxidoreductase (H+-translocating) wikipedia , lookup
Nicotinamide adenine dinucleotide wikipedia , lookup
Basal metabolic rate wikipedia , lookup
Fatty acid metabolism wikipedia , lookup
Photosynthetic reaction centre wikipedia , lookup
Light-dependent reactions wikipedia , lookup
Electron transport chain wikipedia , lookup
Photosynthesis wikipedia , lookup
Adenosine triphosphate wikipedia , lookup
Phosphorylation wikipedia , lookup
Evolution of metal ions in biological systems wikipedia , lookup
Microbial metabolism wikipedia , lookup
Biochemistry wikipedia , lookup
Citric acid cycle wikipedia , lookup
Chapter 9: Cellular Respiration: Energy Releasing Pathways Name AP Biology Date Mr. Mennecke 1. True / False: Aerobic respiration occurs in animals but not in plants, which make ATP only by photosynthesis. 2. Is glycolysis energy-requiring or energy releasing? Explain. 3. In what respect does electron transport oxidative phosphorylation differ from substrate-level phosphorylation? 4. Glycolysis starts and ends in the a. nucleus b. mitochondria c. plasma membrane d. cytoplasm 5. Which of the following does not form during glycolysis? a. NADH c. FADH2 b. pyruvate d. ATP 6. The pathway of aerobic respiration is completed in the a. nucleus c. plasma membrane b. mitochondria d. cytoplasm 7. In the last stage of aerobic respiration _____ is the final acceptor of electrons that originally resided in glucose. a. water c. oxygen b. hydrogen d. NADH 8. In alcoholic fermentation, _______ is the final acceptor of the electrons stripped from glucose. a. oxygen c. acetaldehyde b. kinase d. sulfate 9. Fermentation produces no more ATP beyond the small yield from glycolysis, but the remaining reactions a. regenerate ADP c. dump electrons on an inorganic substance (not oxygen) b. regenerate NAD+ d. generate water 10. In certain organisms & under certain conditions, ________ can be used as an energy alternative to glucose. a. fatty acids c. amino acids b. glycerol d. all of the above 11. Match the event with its most suitable metabolic description. Glycolysis a. ATP, NADH, FADH2, CO2 & water form fermentation b. glucose to two pyruvate Krebs cycle c. NAD+ regenerated, 2 ATP net oxidative phosphorylation d. H+ flows through ATP synthase 12. The process of splitting larger molecules into smaller ones is an aspect of metabolism called a. anabolism c. oxidative phosphorylation b. fermentation d. catabolism 13. The synthetic aspect of metabolism is referred to as a. anabolism c. oxidative phosphorylation b. fermentation d. catabolism 14. A chemical process during which a substance gains electrons is called a. oxidation c. oxidative phosphorylation b. reduction d. dehydrogenation 15. The pathway through which glucose is degraded to pyruvate is referred to as a. aerobic respiration c. alcohol fermentation b. glycolysis d. the oxidation of pyruvate 16. The reactions of ___________ take place within the cytoplasm of eukaryotic cells. a. glycolysis c. chemiosmosis b. oxidation of pyruvate d. the electron transport chain Chapter 9: Cellular Respiration: Energy Releasing Pathways 17. Before pyruvate enters the citric acid cycle, it is decarboxylated, oxidized, & combined with coenzyme A, forming acetyl CoA, carbon dioxide, & one molecule of a. NADH c. ADP b. FADH2 d. C6H12O6 18. In the process of ____________, electron transport and ATP synthesis are coupled by a proton gradient across the inner mitochondrial membrane. a. chemiosmosis c. glycolysis b. anaerobic respiration d. substrate level phosphorylation 19. A net profit of only 2 ATPs can be produced anaerobically from the ___________ of one molecule of glucose, compared with a maximum of 36 ATPs produced in _____________. a. fermentation; anaerobic respiration c. dehydrogenation; decarboxylation b. aerobic respiration; fermentation d. fermentation; aerobic respiration 20. When deprived of oxygen, yeast cells obtain energy by fermentation, producing carbon dioxide, ATP, and a. acetyl CoA c. pyruvate b. ethyl alcohol d. lactic acid 21. During strenuous muscle activity, the pyruvate in muscle cells may accept hydrogen from NADH to become a. acetyl CoA c. pyruvate b. ethyl alcohol d. lactic acid 22. Cyanide blocks the respiratory electron-transport chain. As a result a. the Krebs cycle speeds up. c. electrons and hydrogens cannot flow from NAD+ to oxygen. b. glycolysis is inhibited. d. three ATPs are produced for every pair of electrons. 23. With respect to the element carbon, respiration is a(n) _________ reaction. a. dehydration synthesis c. photosynthetic b. hydrolysis d. anabolic reactions 24. Respiration is important because a. enzymes require it. b. it conserves energy. c. it recycles energy. d. its heat helps to warm the environment. 25. When a muscle cell is metabolizing glucose in the complete absence of molecular oxygen, which one of the following substances in not produced? a. heat c. lactic acid b. ATP d. acetyl-CoA 26. Germinating seeds are placed in a conical flask in setup A. Dry seeds are placed in setup B. A small tube containing KOH is suspended in each flask. KOH absorbs carbon dioxide. Through the hole of the rubber stoppered flasks, a bent glass tube is passed into a beaker of water. One end of each tube is in the flask while the other end is in a beaker filled with water. Both apparatus are air tight. Note the level of water in the tubes. Both apparatus are kept for some time and the positions of water in each tube are noted. It is observed that water rises in the tube in setup A but not setup B. a. What gas is being consumed in this process in flask A? b. Why did water rise in the tube in setup A? c. Why did water not rise in the tube in setup B? d. What would happen if the setups were not sealed from the environment? e. What would happen if KOH were not used in these setups? f. What is the control for this experiment? Chapter 9: Cellular Respiration: Energy Releasing Pathways Answers Go Here: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. (matching) 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. a. b. c. d. e. f.