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Cellular Respiration Review

Mustafa and Karim. Cellular Respiration Review. Glycolysis. Pyruvate oxidation. KREbs cycle. Electron Transport chain. Cellular Respiration Quiz. Challenge 1,000.

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Cellular Respiration Review

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  1. Mustafa and Karim Cellular Respiration Review

  2. Glycolysis

  3. Pyruvate oxidation

  4. KREbs cycle

  5. Electron Transport chain

  6. Cellular Respiration Quiz Challenge 1,000

  7. If you poke a hole in a mitochondrion, can it still perform oxidative respiration? Can fragments of mitochondria perform oxidative respiration? (Hint: think about protons and the last stage of the electron transport chain) Challenge1,000

  8. No, a hole in the mitochondrion would allow leakage of protons out of the mitochondrion and would disrupt the proton concentration gradient. It requires a "closed" system. Answer- Challenge

  9. What is the number of ATP used and the number of ATP produced by the end of the cycle? Glycolysis 100

  10. # used = 2 # produced = 4 Net ATP of 2 Answer -Glycolysis100

  11. Which steps in glycolysis require the input of energy? Glycolysis200

  12. All of the steps of glycolysis require the input of energy. Answer -Glycolysis 200

  13. Name the molecule that splits in half during glycolysis and name the two products. Glycolysis300

  14. Fructose 1,6-biphosphate splits into dihydroxyacetone phosphate and glyceraldehyde 3-phosphate. Answer –Glycoysis300

  15. Complete the chart below for a glucose going through glycolysis: Glycolysis400

  16. Answer –Glycolysis400

  17. Explain the glycolysis cycle with respect to Karim’s song. • What does MR.COSE represent? • The meaning of SPLIT IT IN TWO AND TWO BABIES COME OUT. • “SHE DON'T LIKE HERSELF SHE WANNA CHANGE WANNA BE THE SAME.” Who is SHE in this statement? Glycolysis500

  18. Mr. Cose represents glucose sugar. Two babies come out refers to the division of fructose 1, 6-biphosphate into G3P and DHAP SHE represents the DHAP molecule that changes itself into G3P. Answer –Glycolysis500

  19. What are the three possible fates of pyruvates? Pyruvate Fates100

  20. Ethanol fermentation Lactic acid Acetyl-CoA Answer -Pyruvate Fates100

  21. If alcoholic fermentation is used to make bread dough rise, how come you don’t become intoxicated when you eat the bread? Pyruvate Fates200

  22. The alcohol evaporates and escapes as waste product because of the heat. Answer -Pyruvate Fates200

  23. What are the two factors that determine the fate of pyruvate? Pyruvate Fates300

  24. 1. Depending on the type of cell. • Animal cell may either produce lactic acid or acetyl-CoA • Plant cell may either produce alcohol (ethanol) or acetyl-CoA 2. Depending on the presence or absence of oxygen. Answer -Pyruvate Fates300

  25. Complete the table below for a pyruvate in a plant cell that lacks oxygen: Pyruvate Fates400

  26. Answer -Pyruvate Fates400

  27. Write and explain a balanced word equation that represents the process that each of the two pyruvates undergo when there is a lack of oxygen in the animal cell. Pyruvate Fates500

  28. Answer -Pyruvate Fates500

  29. Krebs Cycle100

  30. Answer - Krebs Cycle100

  31. The electrons generated from the Krebs cycle are transferred to ____________ and then are shuttled to _______________.a). NAD+ / oxygenb). NAD+ / electron transport chainc). NADH / oxygend). NADH / electron transport chain Krebs Cycle200

  32. Answer is b. The electrons generated from the Krebs cycle are transferred to NAD+ and then are shuttled to ETC. Answer - Krebs Cycle200

  33. At what stage of the citric acid cycle is glucose fully decomposed? How do you know? Krebs Cycle300

  34. Glucose is fully decomposed at the stage when succinyl CoA is produced. The number of carbon atoms in the molecule is 4. Answer - Krebs Cycle300

  35. The initial reaction of the Krebs cycle involves the addition of a __carbon(s) to a __carbon molecule. The initial reaction of the Krebs cycle takes place in the ________. Krebs Cycle400

  36. The initial reaction of the Krebs cycle involves the addition of a 2-carbon(s) to a 4-carbon molecule. The initial reaction of the Krebs cycle takes place in the mitochondria. Answer - Krebs Cycle400

  37. Draw the steps that the acetyl-CoA undergoes until it reaches the stage in which it becomes succinate. Krebs Cycle500

  38. Answer - Krebs Cycle500

  39. Explain why FADH2 produces fewer ATP molecules than NADH when it passes its electrons down the electron transport chain. Electron Transport Chain100

  40. NADH molecule produces more energy than a FADH2 molecule because of where it transfers its electrons in the cycle. NADH molecule transfers its electrons at the beginning of the cycle, which results in moving an extra proton out of the mitochondria than the FADH2 molecule. As a result, that extra proton causes the NADH to produce one more ATP than FADH2. Answer - Electron Transport Chain100

  41. How many ATP in total are produced per glucose molecule in the etc assuming that no NADH molecule can enter the shuttle? How do you know? Electron Transport Chain200

  42. Glycolysis: • 2NADH = 6ATP • Pyruvate oxidation: • 2NADH = 6ATP • Krebs: • 6NADH = 18ATP • 2FADH2= 4ATP • Total: 34 ATP total Answer - Electron Transport Chain200

  43. MATCH THE LETTER IN THE DIAGRAM WITH THE LABEL: (You can use them MORE THAN ONCE) ______ MATRIX ______ INTERMEMBRANE SPACE ______ CYTOPLASM ______ OUTER MEMBRANE ______ INNER MEMBRANE (CRISTAE) Electron Transport Chain300

  44. Answer - Electron Transport Chain300 MATCH THE LETTER IN THE DIAGRAM WITH THE LABEL: (You can use them MORE THAN ONCE) ___D___ MATRIX ___B___ INTERMEMBRANE SPACE ___E___ CYTOPLASM ___A___ OUTER MEMBRANE ___C___ INNER MEMBRANE (CRISTAE)

  45. Why is the ATP synthesis in this process known as oxidative phosphorylation? Compare and contrast between oxidative and substrate level phosphorylation. Electron Transport Chain400

  46. ATP synthesis in this process is known as oxidative phosphorylation because it is the indirect production of ATP. Answer - Electron Transport Chain400

  47. “It is more essential for plants to take in CO2 than to use oxygen gas.” Is this statement correct? Why? Electron Transport Chain Related500

  48. Taking in CO2 and using oxygen gas are both essential for plants. They cannot live without the use of CO2 with water and sunlight to make glucose and oxygen. They cannot live without using oxygen gas to brake down glucose and make many ATP molecules during the etc. If pyruvate oxidation does not take place, not many NADH and FADH2 can be converted to ATP and the plant dies. Answer - Electron Transport Chain Related500

  49. The End

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