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Getting energy to make atp   part 1 (pp.231-226) answer key
 

Getting energy to make atp part 1 (pp.231-226) answer key

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    Getting energy to make atp   part 1 (pp.231-226) answer key Getting energy to make atp part 1 (pp.231-226) answer key Document Transcript

    • CENTRO ESCOLAR SOLALTO 9th Pre-IB Biology Teacher Javier Aguirre, B.A. NAME_____________________________________ Date: 07/12/10 Getting Energy to Make ATP Part 1 (Section 9.2) Materials: • Notebook • “Biology – The Dynamics of Life” textbook Instructions: • Paste and complete today’s handout in your notebook • Investigate and write down the following vocabulary in your notebook. Use your textbook glossary (pp. 1113 – 1152). 1. cellular respiration 5. citric acid cycle 2. anaerobic 6. lactic acid fermentation 3. aerobic 7. alcoholic fermentation 4. glycolysis • Read pages 231 and 232 of your textbook and answer the following questions. 1. What is the name of the process by which mitochondria break down food molecules to produce ATP? Cellular respiration 2. What are the three stages of cellular respiration? Which ones are aerobic en which one is anaerobic? 1.Glycolysis (anaerobic) 2. Krebs cycle (aerobic) 3.Electron transport chain (aerobic) 3. Where does glycolysis occur? In the cytoplasm near the outer membrane of the mitochondrion. 4. What happens during glycolysis? A molecule of glucose is broken down into two molecules of pyruvic acid. 5. Complete the following table about the flow of ATP during glycolysis: Molecules of ATP Net Production of ATP Molecules of ATP Used Produced (Produced - Used) 2 4 2 6. What does nicotinamide adenine dinucleotide (NAD+) do? They transport electrons to the next step of cellular respiration. 7. What happens to NAD+ when it accepts two electrons? It turns into NADH. 8. How many molecules of PGAL are formed during glycolysis? Two (2) 9. The PGAL made during photosynthesis can enter the glycolysis pathway and lead to the formation of ATP and organic molecules.
    • 10. Following glycolysis, the pyruvic acid molecules move into the mitochondria and the citric acid cycle begins (If there is oxygen present). What happens to the pyruvic acid molecules before the citric acid cycle can begin? It loses one atom of carbon to form acetyl-CoA as it liberates a molecule of CO2 • Please reproduce Figure 9.8 and Figure 9.9 in your notebook.