Cellular Respiration Section Quizzes
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1 Cellular Respiration Section Quizzes Level 1 Section Test... 2 Level 1 Word Match... 4 Level 2 Section Test... 5 Level 2 Word Match... 7
2 Level 1 Section Test for Cellular Respiration 1. Glycolysis is a step in: a) fermentation b) photosynthesis c) cellular respiration d) the Kreb s cycle e) both a) and c) are correct 2. When something is phosphorylated it has: a) a amino group added b) a phosphate group added c) a phosphoryl group added d) a phosphate group removed Choose the best answer. 3. P-GAL is created during glycolysis when: a) a molecule of fructose is phosphorylated to make P-GAL b) isomerase splits glucose into two P-GALs c) a 6-carbon intermediate sugar is split into two, 3-carbon sugars, one of which is P-GAL d) isomerase changes a 3-carbon compound into its isomer, P-GAL e) both c) and d) are correct 4. What makes scientists believe that glycolysis is an ancient process? a) it still happens in grain cells that have been found in ancient pyramids b) it takes place in the cell s cytosol, not in special organelles c) it happens in all cells d) it occurs in fermentation and cellular respiration pathways e) both b) and c) are correct 5. At the end of glycolysis, each molecule of glucose has yielded 2 molecules of, 2 molecules of and a net of 2 molecules of. a) H2O, CO2, ATP b) CO2, NAD+, ADP c) pyruvate, NADH, ATP d) lactic acid, ethanol, ATP e) FAD, NAD +, ADP 6. Oxygen is highly so that it has a affinity for electrons. a) positive, low b) electronegative, high c) electronegative, low d) reactive, low
3 8. Cellular respiration differs from fermentation because: a) fermentation occurs in the absence of oxygen b) oxygen acts as an electron acceptor in cellular respiration and not in fementation c) fermentation uses glycolysis but no other energy-yielding catabolic steps d) all of the above 9. The infoldings of the inner membrane of the mitochondrion are called: a) krista b) ATP synthase c) cristae d) grana 10. Immediately following the transfer of pyruvate through the mitochondrial membranes: a) CO 2 is released b) pyruvate is oxidized c) Coenzyme A reacts with an intermediate d) Acetyl Co A becomes available to the Krebs cycle e) all of the above 11. What makes the Krebs cycle more productive than glycolysis, even though they both produce only 2 ATP directly from one sugar molecule? a) only the Krebs cycle requires oxygen b) the Krebs cycle occurs in the matrix of the mitochondrion so the energy is contained, rather than dispersed throughout the cytoplasm c) the types of sugars that enter each cycle are different d) the Krebs cycle produces the energy carrier molecules NADH and FADH The proteins in the electron transport chain have prosthetic groups that ossilate between the and state as they accept and donate electrons. a) reduced, oxidized b) open, closed c) positive, negative d) oxidized, reduced 13. The ion grandient between the mitochondrial matrix and intermembrane space is created by: a) passive transport of Na + ions b) active transport of H + ions coupled to electron transport chain redox reactions c) pinocytosis d) positive ion flow 14. Glycolysis occurs in the, the Krebs cycle occurs in the, the electron transport chain occurs in the and oxidative phosphorylation occurs in the. a) extracellular medium, cytoplasm, mitochondrial matrix, intermembrane space b) cytoplasm, mitochondrial matrix, inner mitochondrial membrane, inner mitochondrial membrane c) mitochondrial matrix, mitochondrial matrix, inner mitochondrial membrane, intermembrane space d) cytoplasm, intermembrane space, mitochondrial matrix, inner mitochondrial membrane
4 Level 1 Word Match for Cellular Respiration (Match the description on the right with the letter of the correct term on the left. Not all terms are used.) A. cyanobacteria B. mitochondrial matrix C. Krebs cycle D. ADP E. lactic acid F. glyceraldehyde 3-phosphate G. fermentation H. NADH I. pyruvate J. FADH2 K. glycolysis L. ETC M. ATP synthase N. acetyl Co A O. cellular respiration P. NAD+ 1. a catabolic pathway that occurs in the absence of O 2 2. a protein complex that produces ATP 3. the molecule that results from the splitting of glucose in the energy investment phase of glycolysis 4. the end product of glycolysis 5. a process that produces 2 ATP and occurs in both fermentation and cellular respiration 6. this houses the Krebs cycle 7.the third step in cellular respiration 8. photoautotrophic bacteria 9. primary energy of the cell before it is phosphorylated 10. the product of pyruvate and coenzyme A 11. produces up to 38 ATP and is 18 times more efficient than fermentation 12. a process that produces NADH and FADH2 13. a possible product of fermentation 14. the electrons from P-GAL are transferred to this molecule
5 Level 2 Section Test for Cellular Respiration 1. Once the glucose molecule enters the cell, the first step of glycolysis prevents it from leaving because: a) the new intermediate s electric charge prevents it from crossing the membrane again b) the intermedidate formed with a phosphate is too large to cross the membrane c) it is bound to the mitochondrion membrane d) the enzyme holds on and won t let it go 2. The enzyme changes dihydroxyacetone phosphate into its isomer P-GAL. a) aldolase b) isomerase c) DNA polymerase d) hexokinase 3. The enzyme that changes phosphoenolpyruvate to pyruvate is: a) enolase b) phophoglyceromutase c) phosphoglycerokinase d) pyruvate kinase 4. Cyanobacteria are: a) photoheterotrophic b) chemoheterotrophic c) photoautotrophic d) chemoautotrophic 5. What makes scientists believe that glycolysis is an ancient process? a) it still happens in grain cells that have been found in ancient pyramids b) it takes place in the cell s cytosol, not in special organelles c) it happens in all cells d) it occurs in fermentation and cellular respiration pathways e) both b) and c) are correct 6. The endosymbiotic theory explains: a) how endomembranes are formed b) why vesicles are created c) the origin of organelles such as the mitochondrion and chloroplast d) phagocytosis 7. The Krebs cycle shows a net transfer of carbon atoms as zero because two carbons enter in the form of: a) acetate and two carbons leave as CO2 b) CO2 and two carbons leave as acetate c) pyruvate and two carbons leave as oxaloacetate d) citrate and two carbons leave as CO2
6 8. The Krebs cycle depends on the regeneration of which when combined with begins the cycle once again. a) citrate, pyruvate b) oxaloacetate, acetate c) oxaloacetate, acetyl Co A d) acetate, citrate 9. The difference between substrate level phosphorylation and oxidative phosphorylation involves: a) the products are different b) they occur in different organelles c) one requires the linking of the electron transport chain to redox reactions d) one occurs only in glycolysis 10. Which of the following is NOT oxidized during the Krebs cycle: a) alpha-ketogluterate b) succinate c) fumarate d) isocitrate e) malate 11. The phosphorylation of ADP, facilitated by ATP synthase, is coupled to redox reactions by: a) oxidative phosphorylation b) cellular respiration c) a proton-motive force d) Krebs cycle
7 Level 2 - Word Match for Cellular Respiration (Match the description on the right with the correct letter of the term on the left. Not all of the terms are used.) A. electronegative B. ethanol C. proton motive force D. ATP synthase E. phosphorylation F. prosthetic group G. pyruvate kinase H. chemiosmosis I. acetate J. NADH K. oxaloacetate L. cytochromes M. oxidization N. cristae O. redox reactions P. oxidative phosphorylation Q. Krebs cycle 1. passes its electrons on to the electron transport chain 2. the projections on the inner mitochondrial membrane 3. ATP synthesis that is powered by redox reactions on the electron transport chain 4. the molecule that donates a group to the Krebs cycle 5. the affinity a molecule has for shared electrons 6. any process that couples transport across a membrane with chemical reactions 7. the loss of electrons 8. citric acid cycle 9. the undulations of the inner mitochondrial membrane 10. the product of alcohol fermentation 11. the enzyme that catalyses the production of pyruvate 12. the non-protein parts of the electron transport chain proteins 13. an ion gradient with the ability to do work 14. the molecule that is regenerated by the Krebs cycle 15. addition of a phosphate group to a molecule
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