Chapter 7

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Chapter 7

  1. 1. Mader's Concepts in Biology, First Edition Copyright © The McGraw-Hill Companies, InC) Permission required for reproduction or display. Sylvia S. Mader Chapter 7
  2. 2. Question 1 <ul><li>When did ATP make its appearance on the planet Earth? </li></ul><ul><li>A. 0.5 billion years ago </li></ul><ul><li>B. 1.5 billion years ago </li></ul><ul><li>C. 2.5 billion years ago </li></ul><ul><li>D. 3.5 billion years ago </li></ul><ul><li>E. 4.5 billion years ago </li></ul>
  3. 3. Question 2 <ul><li>Which of the following are the end products for cellular respiration? </li></ul><ul><li>A. glucose and carbon dioxide </li></ul><ul><li>B. glucose and water </li></ul><ul><li>C. glucose and oxygen </li></ul><ul><li>D. oxygen and carbon dioxide </li></ul><ul><li>E. carbon dioxide and water </li></ul>
  4. 4. Question 3 <ul><li>A biologist is studying the reactants in the overall equation for cellular respiration. He or she would be studying which of the following molecules? </li></ul><ul><li>A. glucose and water </li></ul><ul><li>B. carbon dioxide and water </li></ul><ul><li>C. oxygen and glucose </li></ul><ul><li>D. carbon dioxide and glucose </li></ul><ul><li>E. water and oxygen </li></ul>
  5. 5. Question 4 <ul><li>Which of the following are coenzymes which assist in cellular respiration? </li></ul><ul><li>A. FAD and RuBP </li></ul><ul><li>B. NAD and FAD </li></ul><ul><li>C. NAD and RuBP </li></ul><ul><li>D. NAD and ATP synthase </li></ul><ul><li>E. FAD and ATP synthase </li></ul>
  6. 6. Question 5 <ul><li>The order of the major pathways and reactions of cellular respiration is: </li></ul><ul><li>A. glycolysis-preparatory reaction-citric acid cycle-electron transport chain </li></ul><ul><li>B. electron transport chain-glycolysis-preparatory reaction-citric acid cycle </li></ul><ul><li>C. glycolysis-electron transport chain-preparatory reaction-citric acid cycle </li></ul><ul><li>D. citric acid cycle-glycolysis-preparatory reaction-electron transport chain </li></ul><ul><li>E. glycolysis-preparatory reaction-citric acid cycle-electron transport chain </li></ul>
  7. 7. Question 6 <ul><li>Which of the following phases takes place outside the mitochondria and is considered to be anaerobic? </li></ul><ul><li>A. electron transport chain </li></ul><ul><li>B. preparatory reaction </li></ul><ul><li>C. glycolysis </li></ul><ul><li>D. citric acid cycle </li></ul><ul><li>E. chemiosmosis </li></ul>
  8. 8. Question 7 <ul><li>The conversion of pyruvate into a 2-carbon acetyl group is carried out during which of the following phases? </li></ul><ul><li>A. electron transport chain </li></ul><ul><li>B. preparatory reaction </li></ul><ul><li>C. glycolysis </li></ul><ul><li>D. citric acid cycle </li></ul><ul><li>E. chemiosmosis </li></ul>
  9. 9. Question 8 <ul><li>During glycolysis, what is the net yield of ATP? </li></ul><ul><li>A. no ATP </li></ul><ul><li>B. 4 ATP </li></ul><ul><li>C. 2 ATP </li></ul><ul><li>D. 6 ATP </li></ul><ul><li>E. 10 ATP </li></ul>
  10. 10. Question 9 <ul><li>In which of the following events of cellular respiration is no ATP produced? </li></ul><ul><li>A. the electron transport chain </li></ul><ul><li>B. glycolysis </li></ul><ul><li>C. the citric acid cycle </li></ul><ul><li>D. the preparatory reaction </li></ul><ul><li>E. chemiosmosis </li></ul>
  11. 11. Question 10 <ul><li>The molecule NAD is said to have an oxidative role in the process of glycolysis because they: </li></ul><ul><li>A. accept phosphate atoms </li></ul><ul><li>B. accept oxygen atoms </li></ul><ul><li>C. accept carbon dioxide molecules </li></ul><ul><li>D. accept electrons and hydrogen atoms </li></ul><ul><li>E. accept pyruvate molecules </li></ul>
  12. 12. Question 11 <ul><li>When an enzyme is used to convert ADP into ATP it is referred to as: </li></ul><ul><li>A. enzyme ATP synthesis </li></ul><ul><li>B. active site ATP synthesis </li></ul><ul><li>C. substrate-level ATP synthesis </li></ul><ul><li>D. enzyme ADP synthesis </li></ul><ul><li>E. substrate-level ADP synthesis </li></ul>
  13. 13. Question 12 <ul><li>Pyruvate is converted to a two-carbon acetyl group attached to coenzyme A (CoA), and carbon dioxide is given off during which phase of cellular respiration? </li></ul><ul><li>A. chemiosmosis </li></ul><ul><li>B. preparatory reaction </li></ul><ul><li>C. the electron transport chain </li></ul><ul><li>D. anaerobic respiration </li></ul><ul><li>E. glycolysis </li></ul>
  14. 14. Question 13 <ul><li>Which is not true of the preparatory reaction of cellular respiration? </li></ul><ul><li>A. it connects glycolysis to the citric acid cycle </li></ul><ul><li>B. carbon dioxide is given off </li></ul><ul><li>C. pyruvate is converted to a two-carbon acetyl group </li></ul><ul><li>D. NAD is converted to NADH </li></ul><ul><li>E. the reaction occurs once per glucose molecule </li></ul>
  15. 15. Question 14 <ul><li>What is the significance of the cristae in the mitochondria? </li></ul><ul><li>A. increase surface area therefore increasing glycolysis </li></ul><ul><li>B. increase surface area therefore increasing the citric acid cycle </li></ul><ul><li>C. increase surface area therefore increasing the preparatory reaction </li></ul><ul><li>D. increase surface area therefore increasing fermentation </li></ul><ul><li>E. increase surface area therefore increasing the electron transport chain </li></ul>
  16. 16. Question 15 <ul><li>A chemist is studying the carriers involved in the electron transport chain. Which of the following molecules would he or she be studying? </li></ul><ul><li>A. pyruvate molecules </li></ul><ul><li>B. acetyl groups </li></ul><ul><li>C. cytochrome molecules </li></ul><ul><li>D. NADH molecules </li></ul><ul><li>E. FADH 2 molecules </li></ul>
  17. 17. Question 16 <ul><li>During the process of cellular respiration, what is the total number of ATP produced per glucose molecule? </li></ul><ul><li>A. 36 or 38 </li></ul><ul><li>B. 32 or 34 </li></ul><ul><li>C. 28 or 30 </li></ul><ul><li>D. 24 or 26 </li></ul><ul><li>E. 20 or 24 </li></ul>
  18. 18. Question 17 <ul><li>How much of the available energy stored in glucose is converted to ATP? </li></ul><ul><li>A. 68% </li></ul><ul><li>B. 7% </li></ul><ul><li>C. 26% </li></ul><ul><li>D. 50% </li></ul><ul><li>E. 39% </li></ul>
  19. 19. Question 18 <ul><li>What would be the result if oxygen became unavailable to the cell? </li></ul><ul><li>A. glycolysis would stop </li></ul><ul><li>B. the citric acid cycle would stop </li></ul><ul><li>C. the electron transport chain would stop </li></ul><ul><li>D. the preparatory reaction would stop </li></ul><ul><li>E. substrate-level ATP synthesis would stop </li></ul>
  20. 20. Question 19 <ul><li>Per glucose molecule, the citric acid cycle occurs four times. </li></ul><ul><li>A. true </li></ul><ul><li>B. false </li></ul>
  21. 21. Question 20 <ul><li>A biologist is studying where most of the energy from cellular respiration comes from. The biologist would be studying which of the following phases? </li></ul><ul><li>A. glycolysis </li></ul><ul><li>B. fermentation </li></ul><ul><li>C. the citric acid cycle </li></ul><ul><li>D. the electron transport chain </li></ul><ul><li>E. the preparatory reaction </li></ul>

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