Chapter 7
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The document contains 20 multiple choice questions about cellular respiration. Specifically, it asks about when ATP first appeared on Earth, the products of cellular respiration, the reactants studied in the overall equation, coenzymes that assist cellular respiration, the order of the major pathways, which phase occurs outside mitochondria and is anaerobic, which phase converts pyruvate to a 2-carbon acetyl group, the net ATP yield from glycolysis, which event produces no ATP, the role of NAD in glycolysis, what enzyme converts ADP to ATP, which phase converts pyruvate to a 2-carbon acetyl group and releases CO2, what is not true of the preparatory reaction, the significance of cristae in mitochond
Chapter 7
- 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. Question 1 When did ATP make its appearance on the planet Earth? A. 0.5 billion years ago B. 1.5 billion years ago C. 2.5 billion years ago D. 3.5 billion years ago E. 4.5 billion years ago
- 3. Question 2 Which of the following are the end products for cellular respiration? A. glucose and carbon dioxide B. glucose and water C. glucose and oxygen D. oxygen and carbon dioxide E. carbon dioxide and water
- 4. Question 3 A biologist is studying the reactants in the overall equation for cellular respiration. He or she would be studying which of the following molecules? A. glucose and water B. carbon dioxide and water C. oxygen and glucose D. carbon dioxide and glucose E. water and oxygen
- 5. Question 4 Which of the following are coenzymes which assist in cellular respiration? A. FAD and RuBP B. NAD and FAD C. NAD and RuBP D. NAD and ATP synthase E. FAD and ATP synthase
- 6. Question 5 The order of the major pathways and reactions of cellular respiration is: A. glycolysis-preparatory reaction-citric acid cycle-electron transport chain B. electron transport chain-glycolysis-preparatory reaction-citric acid cycle C. glycolysis-electron transport chain-preparatory reaction-citric acid cycle D. citric acid cycle-glycolysis-preparatory reaction-electron transport chain E. glycolysis-preparatory reaction-citric acid cycle-electron transport chain
- 7. Question 6 Which of the following phases takes place outside the mitochondria and is considered to be anaerobic? A. electron transport chain B. preparatory reaction C. glycolysis D. citric acid cycle E. chemiosmosis
- 8. Question 7 The conversion of pyruvate into a 2-carbon acetyl group is carried out during which of the following phases? A. electron transport chain B. preparatory reaction C. glycolysis D. citric acid cycle E. chemiosmosis
- 9. Question 8 During glycolysis, what is the net yield of ATP? A. no ATP B. 4 ATP C. 2 ATP D. 6 ATP E. 10 ATP
- 10. Question 9 In which of the following events of cellular respiration is no ATP produced? A. the electron transport chain B. glycolysis C. the citric acid cycle D. the preparatory reaction E. chemiosmosis
- 11. Question 10 The molecule NAD is said to have an oxidative role in the process of glycolysis because they: A. accept phosphate atoms B. accept oxygen atoms C. accept carbon dioxide molecules D. accept electrons and hydrogen atoms E. accept pyruvate molecules
- 12. Question 11 When an enzyme is used to convert ADP into ATP it is referred to as: A. enzyme ATP synthesis B. active site ATP synthesis C. substrate-level ATP synthesis D. enzyme ADP synthesis E. substrate-level ADP synthesis
- 13. Question 12 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? A. chemiosmosis B. preparatory reaction C. the electron transport chain D. anaerobic respiration E. glycolysis
- 14. Question 13 Which is not true of the preparatory reaction of cellular respiration? A. it connects glycolysis to the citric acid cycle B. carbon dioxide is given off C. pyruvate is converted to a two-carbon acetyl group D. NAD is converted to NADH E. the reaction occurs once per glucose molecule
- 15. Question 14 What is the significance of the cristae in the mitochondria? A. increase surface area therefore increasing glycolysis B. increase surface area therefore increasing the citric acid cycle C. increase surface area therefore increasing the preparatory reaction D. increase surface area therefore increasing fermentation E. increase surface area therefore increasing the electron transport chain
- 16. Question 15 A chemist is studying the carriers involved in the electron transport chain. Which of the following molecules would he or she be studying? A. pyruvate molecules B. acetyl groups C. cytochrome molecules D. NADH molecules E. FADH 2 molecules
- 17. Question 16 During the process of cellular respiration, what is the total number of ATP produced per glucose molecule? A. 36 or 38 B. 32 or 34 C. 28 or 30 D. 24 or 26 E. 20 or 24
- 18. Question 17 How much of the available energy stored in glucose is converted to ATP? A. 68% B. 7% C. 26% D. 50% E. 39%
- 19. Question 18 What would be the result if oxygen became unavailable to the cell? A. glycolysis would stop B. the citric acid cycle would stop C. the electron transport chain would stop D. the preparatory reaction would stop E. substrate-level ATP synthesis would stop
- 20. Question 19 Per glucose molecule, the citric acid cycle occurs four times. A. true B. false
- 21. Question 20 A biologist is studying where most of the energy from cellular respiration comes from. The biologist would be studying which of the following phases? A. glycolysis B. fermentation C. the citric acid cycle D. the electron transport chain E. the preparatory reaction