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Chapter 7

Chapter 7 . Cell Respiration. Chemical reaction in which energy is released in support of cell life is. Photosynthesis Chemosynthsis Oxidation Cell respiration. During cell respiration, energy is transferred from. Enzyme to glucose Glucose to ATP ATP to glucose

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Chapter 7

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  1. Chapter 7 Cell Respiration

  2. Chemical reaction in which energy is released in support of cell life is • Photosynthesis • Chemosynthsis • Oxidation • Cell respiration

  3. During cell respiration, energy is transferred from • Enzyme to glucose • Glucose to ATP • ATP to glucose • Glucose to CO2 and water

  4. Less ATP is produced in anaerobic respiration than aerobic respiration because • Fewer bonds are broken • O2 is energy rich • Fewer CO2 molecules are produced • ATP is invested in the process

  5. The first stage of cell respiration takes place in the • Nucleus • Vacuoles • Mitochondria • cytoplasm

  6. Living organisms use the potential energy stored in • Oil • Water • Oxygen • Glucose

  7. The compounds CO2 and H2O • The reactants in cellular respiration • The reactants in photosynthesis • Products in photosynthesis • Products in fermentation

  8. The compounds CO2 and H2O • More potential energy than glucose • Are produced ONLY by heterotrophs • Both enter a plant by soil • Have less potential energy than glucose

  9. Which organism(s) do NOT undergo fermentation • Plants • bacteria • Animals • yeast

  10. Which of the following is produced in anaerobic respiration in the muscle cells • C6H12O6 • CO2 • C2H5OH • C3H6O3

  11. This accumulates in the muscles and causes fatigue, when oxygen is depleted • CO2 • Lactic acid • Pyruvic acid • Glucose

  12. What is the first step in cellular respiration? • Kreb cycle • Fermentation • Electron transport chain • Glycolysis

  13. The reactants of this step of cellular respiration are acetyl CoA and oxaloacetic acid • Fermentation • Glycolysis • Citric acid cycle • Electron transport chain

  14. In aerobic respiration, what is the final electron acceptor • CO2 • NAD+ • oxygen • FAD+

  15. In aerobic respiration, what is the NET amount of ATP produced • 34 • 36 • 38 • 40

  16. How many CO2 are produced in the Kreb’s cycle? • 2 • 3 • 4 • 5 • 6

  17. In aerobic respiration, what is the total number of hydrogens removed? • 8 • 16 • 24 • 36

  18. In cellular respiration, what is the amount of activation energy needed? • 1 ATP • 2ATP • 3 ATP • 4 ATP

  19. In aerobic respiration, a total of 4 ATP are produced in this stage • Glycoylsis • Forming acetyl CoA • Kreb’s cycle • Electron Transport Chain

  20. The first compound formed in the Kreb’s cycle is • Citric acid • Lactic acids • Pyruvic acid • Hydrochloric acid

  21. What is the net amount of ATP produced in anaerobic respiration? • 40 ATP • 38 ATP • 36 ATP • 2 ATP

  22. What is the total amount of CO2 released in the Kreb’s cycle? • 2 CO2 • 4 CO2 • 6 CO2 • 8 CO2

  23. Removal of hydrogens is called … • Reduction • Oxidation

  24. Which of the following is an important molecule recycled by both lactic acid and alcoholic fermentation? • ATP • NADH2 • CO2 • NAD+

  25. Animals cannot make their own food and are therefore called … • Heterotrophs • Autotrophs • Photosynthetic • chemosynthetic

  26. The aerobic stage of cellular respiration takes place in the … • Cytoplasm • Cell membrane • Mitochondria

  27. In the second step of aerobic respiration, pyruvic acid is converted into CO2, NADH2, and … • Citric acid • Oxaloacetic acid • Acetyl CoA • Lactic acid

  28. What two products of the Kreb’s cycle drive the Electron Transport Chain? • H2O and CO2 • Acetyl CoA and ATP • Oxaloacetic acid and citric acid • NADH2 and FADH2

  29. Where in the mitochondria does the Kreb’s cycle take place? • Matrix • Cell membrane • Cristae • Cell wall

  30. Where in the mitochondria is the electron transport chain located? • Matrix • Cell membrane • Cristae • Cell wall

  31. Where would the Kreb’s cycle take place in the structure below • A • . B • . C A. B C D

  32. If oxygen is not present, what is the final H accepter? • NADH2 • Water • pyruvic acid • ATP

  33. How many total NADH2 are formed in aerobic respiration? • 2 • 4 • 8 • 10

  34. In fermentation, ethyl alcohol is produced from this molecule • Lactic acid • NAD • FAD • Pyruvic Acid

  35. Which two molecules drive the production of ATP in the ETC? • Water/ carbon dioxide • NADH2/FADH2 • Ethyl alcohol/ATP • Citric Acid/Acetyl CoA

  36. Process that occurs between blood cells and body cells • Breathing • Gas exchange • Respiration • Combustion

  37. The process of photosynthesis is an_____process • Endergonic • Exergonic

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