Cellular Respiration 1. The process that produces FADH2 and NADH to power the electron transport chain a. Glycolysis b. the electron transport chain c. the Krebs cycle d. alcoholic fermentation 2. Aerobic respiration that involves proton pumps, ATP synthase, and the synthesis of up to 34 ATP molecules per glucose is called a. the Krebs cycle b. glycolysis c. fermentation d. the electron transport chain 3. During glycolysis, ______molecules of ATP are used to power the process, while ______molecules of ATP are made overall." a. 4; 2 b. 4; 4 c. 2; 4 d. 2; 2 4. Cellular respiration in the presence of oxygen is called a. cellular respiration b. aerobic respiration c. anaerobic respiration d. glycolysis 5. A channel protein and enzyme that makes ATP is called a. proton pump b. ATP synthase c. electron transport chain d. Krebs cycle 6. The end product of glycolysis is a. FADH2 b. Pyruvate c. Glucose d. None of the above 7. An energy-carrying compound produced during the Krebs cycle is called a. FADH2 b. NADH c. ATP d. More than one answer is true 8. Cellular respiration in the absence of oxygen is called a. aerobic respiration b. cellular respiration c. anaerobic respiration d. electron transport chain 9. An energy-carrying compound created in the Krebs Cycle and used during the Electron Transport chain is a. FADH2 b. Pyruvate c. Glucose d. Lactic acid

Cellular Respiration 10. The second stage of cellular respiration, ______, involves the creation of important electron-carriers needed to help synthesize ATP. a. the Krebs cycle b. glycolysis c. fermentation d. the electron transport chain 11. Which part of aerobic respiration produces the most ATP? a. the Krebs cycle b. glycolysis c. fermentation d. the electron transport chain 12. How many pyruvate molecules are produced for every molecule of glucose that enters glycolysis? a. 1 b. 2 c. 3 d. 4 13. Cellular respiration that proceeds in the presence of oxygen is called aerobic respiration. a. True b. False 14. Oxygen is the final electron acceptor during anaerobic respiration. a. True b. False 15. Breaking down one molecule of glucose through aerobic respiration can produce up to 38 ATP. a. True b. False 16. Plants perform photosynthesis, but plants AND animals perform cellular respiration to break down glucose for ATP. a. True b. False 17. Cellular respiration in the presence of oxygen is called a. anaerobic respiration b. glycolysis. c. aerobic respiration. d. oxygen respiration 18. The correct order of stages of aerobic respiration is a. glycolysis - the Calvin cycle - electron transport chain b. the light reactions - glycolysis - the Krebs cycle. c. glycolysis - the Krebs cycle - electron transport chain. d. electron transport chain - glycolysis - the Krebs cycle. 19. The final electron acceptor at the end of aerobic respiration is a. hydrogen. b. Oxygen c. Water d. ATP synthase 20. Fermentation involves which stages of cellular respiration? (1) glycolysis, (2) the Krebs cycle, (3) electron transport. a. 1 only b. 1 and 2 c. 2 and 3 d. all three stages

Cellular Respiration 21. After intense activity, your muscles feel sore because of a. the accumulation of water b. the accumulation of lactic acid. c. the accumulation of ATP d. the accumulation of carbon dioxide. 22. Both alcoholic fermentation and lactic acid fermentation a. start with pyruvate. b. recycle NAD+ from NADH. c. allow glycolysis to continue d. all of the above 23. Aerobic and anaerobic respiration are similar because both: a. require glucose b. require oxygen c. require CO2 d. require H2O 24. During our bread dough lab, yeast broke down ______through ______, to create ______. a. Sugar; lactic acid fermentation; CO2 b. CO2; alcoholic fermentation; Sugar c. CO2; lactic acid fermentation; Sugar d. Sugar; alcoholic fermentation; CO2 25. Where does the Krebs cycle occur in the cell? a. Mitochondria b. Chloroplast c. Cytoplasm d. None of the above 26. What type of respiration are bacteria unable to use to produce ATP, due to their lack of organelles? a. Krebs cycle b. Electron transport chain c. Alcoholic fermentation d. More than one answer is true 27. Most ATP in eukaryotic cells is produced in the: a. mitochondria b. nucleus c. cytoplasm d. rough endoplasmic reticulum 28. The net result of the breakdown of glucose in glycolysis and fermentation is the production of: a. 38 ATP b. 36 ATP c. 2 ATP d. NADH 29. As protons flow through the ______, energy is released and exploited to combine ADP and inorganic phosphate to form ATP. a. electron transport chain b. outer mitochondrial membrane c. ATP synthase

Cellular Respiration 30. NADH Most of the ATP is produced in ______of cellular respiration. a. the Krebs cycle b. glycolysis c. fermentation d. the electron transport chain 31. The process of splitting glucose into two pyruvate molecules a. the Krebs cycle b. glycolysis c. fermentation d. the electron transport chain 32. The first step of cellular respiration is called a. the Krebs cycle b. glycolysis c. fermentation d. the electron transport chain 33. ______is the final electron acceptor at the end of the electron transport chain. When electrons bind, water is formed. a. Oxygen b. Carbon c. Nitrogen d. Hydrogen 34. ______is the enzyme that produces (synthesizes) ATP during the final stage of cellular respiration. a. ATP b. ATP synthase c. proton pump d. electron transport chain 35. The second stage of aerobic respiration (the Krebs Cycle) depends on the production of ______to occur. a. Pyruvate b. Glucose c. CO2 d. H2O

Bonus: Write your bonus on the back of your bubble sheet please (one point each)

B1 –

How do enzymes speed up chemical reactions?

a. by reducing the activation energy of the reaction b. by reducing the energy produced by the reaction c. by increasing activation energy d. by increasing energy produced in the reaction

B2

The aerobic and anaerobic pathways of cellular respiration require which products of glycolysis?

a. NADH and ATP b. Pyruvate and ATP c. Pyruvate and NADH d. ATP, pyruvate, and NADH