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CR worksheet - 1 2 3 4 In glycolysis What is the net ATP...

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Cellular Respiration Net reaction: C 6 H 12 O 6 + 6O 2 →→→→ 6CO 2 + 6H 2 O + Energy (ATP) 1. Glycolysis Fermentation a) lactic acid fermentation b) alcoholic fermentation -- Preparatory steps 2. Krebs Cycle 3. Electron Transport Chain Note: Glycolysis and fermentation are anaerobic reactions (without oxygen) that occur in the cytoplasm of a cell. The preparatory steps, Krebs Cycle and the Electron Transport Chain are all aerobic steps and they all occur in the mitochondria of a cell. Net production per 1 glucose molecule: ATP NADH FADH 2 Glycolysis 2 2 0 Preparatory steps 0 2 0 Krebs Cycle 2 6 2 Electron Transport Chain 32-34 Total 36-38
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Study Questions 1. What is the overall reaction of cellular respiration, starting with glucose? (ie: this includes such molecules as pyruvic acid, NADH, etc.) 2. What is the special molecule ATP used for in cells? Finish the equation ATP →→→ ___________ + ___________ + energy 3. What are the three steps in cellular respiration?
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Unformatted text preview: 1. ____________________________ 2. ____________________________ 3. ____________________________ 4. In glycolysis: What is the net ATP made per glucose? Is any O 2 used? Are any electron taxi cabs made? What are these taxi cabs called? Where in the cell does glycolysis take place? 5. In fermentation: What chemical accumulates in your muscles if there is not enough oxygen, causing the cells to undergo fermentation? What chemical do yeast cells make in this situation? 6. In aerobic respiration: Precisely where in the cell does most of aerobic respiration take place? Where do the electrons go when the get off the taxi cabs? What is O 2 used for? 7. For every glucose molecule, how many ATP can you make? 8. Besides glucose, what other foods can you use to make ATP? 9. Fill in the blanks in the diagram below:...
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