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Nov. 2 (aerobic vs. anaerobic)
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Nov. 2 (aerobic vs. anaerobic)

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    Nov. 2 (aerobic vs. anaerobic) Nov. 2 (aerobic vs. anaerobic) Presentation Transcript

    • Biology I Mr. Nettles
    • Agenda – Wed., Nov. 2, 2011
      • Warm-Up: EOC Questions
      • Lesson: Anaerobic vs. Aerobic
      • Wrap-Up: Review Questions from Lesson
      • Homework: Summarization Worksheet (due at beginning of class tomorrow!)
      • Tomorrow: Review Day!!
      • Friday: Major Quiz!!
    • Today’s Objectives
      • I will define aerobic and anaerobic respiration.
      • I will compare and contrast aerobic and anaerobic respiration.
      • binds to specific active sites
      • stores genetic information
      • transports amino acids to ribosomes
      • produces chromosomes for sexual reproduction
      What is the primary function of DNA In organisms? Warm-Up (Nov. 2)
      • lipids
      • proteins
      • nucleic acids
      • carbohydrates
      Which molecules store and transmit genetic information ? Warm-Up (Nov. 2)
      • swell when exposed to salt.
      • absorb the extra salt.
      • release water in the presence of salt.
      • lose oxygen when in contact with salt.
      A student notices that the lettuce in a salad wilts soon after salt is added. Wilting most likely occurs because the lettuce cells: Warm-Up (Nov. 2)
    • Aerobic and Anaerobic Respiration
      • Cellular respiration is a type of aerobic respiration because it requires oxygen .
    • Aerobic and Anaerobic Respiration
      • Cellular respiration occurs in three main parts .
      • Glycolysis
      • Krebs Cycle (citric acid cycle)
      • Electron Transport Chain
    • Glycolysis
      • Glucose is broken down into pyruvic acid.
      • Two molecules of ATP and two molecules of NADH are formed for each molecule of glucose that is broken down.
      Aerobic and Anaerobic Respiration
    • Krebs Cycle (citric acid cycle)
      • The Krebs Cycle produces six CO 2 (carbon dioxide) molecules, two ATP, eight NADH, and two FADH 2 .
      Aerobic and Anaerobic Respiration
      • The series of reactions in which pyruvic acid is broken down into carbon dioxide .
      • NADH and FADH 2 carry high-energy electrons .
    • Krebs Cycle (citric acid cycle) Aerobic and Anaerobic Respiration
    • Electron Transport Chain Aerobic and Anaerobic Respiration
      • NADH and FADH 2 release high-energy electrons (H + ) to produce ATP.
        • NADH becomes NAD +
        • FADH 2 becomes FAD
      • Uses ten NADH molecules from glycolysis and the Krebs Cycle to make 30 ATP .
      • Uses two FADH 2 molecules from the Krebs Cycle to make 4 ATP .
    • Aerobic and Anaerobic Respiration
      • Summary of Cellular Respiration (Aerobic Respiration)
      Process What Happens? What’s Made? Glycolysis glucose breaks down into pyruvic acid 2 ATP 2 NADH Krebs Cycle pyruvic acid is broken down into carbon dioxide 2 ATP 8 NADH 2 FADH 2 Electron Transport Chain ATP is formed from the transport of high-energy electrons 34 ATP
    • Aerobic and Anaerobic Respiration
      • Anaerobic Respiration does not require oxygen.
        • Only two ATP are produced
        • Two Types:
          • Lactic Acid Fermentation – used to make foods such as cheese and yogurt
          • Alcohol Fermentation – used to make beer and wine
      • What are are the three main stages of
      • cellular respiration ?
      Wrap-Up (Nov. 2)
      • How are aerobic respiration and anaerobic
      • respiration different?
      • Count the total number of ATP produced
      • from cellular respiration.
      • (Hint: Glycolysis + Krebs Cycle + Electron Transport Chain )