AP-BioHW- - Homework#9(091016 Chapter 9(due Friday 091016...

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Homework #9 (091016): Chapter 9 (due Friday 091016) Total points: 20 for Attempt on all questions ONE Concept Map: 10 points Amit Patel 111027 #19 Objectives The Principles of Energy Harvest 1.In general terms, distinguish between fermentation and cellular respiration. Fermentation is the catabolic process that partially breaks down sugars without oxygen, while cellular respiration is a catabolic pathway for producing ATP, in which oxygen is consumed as a reactant along with organic fuel. -fermentation -no O2 -cellular respiration -yes O2 2. Write the summary equation for cellular respiration. Write the specific chemical equation for the degradation of glucose. The equation is: (organic compounds + oxygen carbon dioxide + water + energy). The equation for the respiration of glucose is: [C 6 H 12 O 6 + 6 O 2 6 CO 2 + 6 H 2 O + Energy (ATP and heat)]. -organic compounds + oxygen carbon dioxide + water + energy -C 6 H 12 O 6 + 6 O 2 6 CO 2 + 6 H 2 O + Energy (ATP and heat) 3. Define oxidation and reduction. Oxidation is loss of an electron from one atom, and reduction is adding electrons to another atom. -Oxidation loses electron -Reduction gains electron 4. Explain in general terms how redox reactions are involved in energy exchanges. Redox reactions are electron transfers, and since electrons hold energy by their orbital, transferring them changes energy. -redox reactions -reducing agent: gets e - -oxidizing agent: loses e - 5. Describe the role of NAD + in cellular respiration.
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NAD + , adenine dinucleotide, is an electron acceptor and is the oxidizing agent during cellular respiration. -NAD + :electron acceptor -cellular respiration 6. In general terms, explain the role of the electron transport chain in cellular respiration. Electron transport chain breaks the energy generated by the fall of electrons to oxygen into several steps instead as opposed to one explosive reaction. -electron transport chain (ETC) -uses fall of e- -to Oxygen -many steps The Process of Cellular Respiration 7. Name the three stages of cellular respiration and state the region of the eukaryotic cell where each stage occurs. Glycolysis happens in the cytosol, the citric acid cycle occurs in the mitochondrion, and oxidative phosphorylation which involves the electron transport chain and chemiosmosis, happensin the mitochondrion.
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