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Cellular Respiration: Energy Production in Plants and Animals

Dive into the fascinating process of cellular respiration, where mitochondria in our cells convert food into ATP, the energy currency of life. Explore the key stages: glycolysis, the citric acid cycle, and the electron transport chain, each crucial for energy production. Discover the differences between aerobic and anaerobic respiration, including lactic acid and alcoholic fermentation. Imagine a world where we harness energy like plants through photosynthesis—how would that change us? Learn why our cellular energy systems are vital for survival.

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Cellular Respiration: Energy Production in Plants and Animals

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  1. Cellular Respiration Getting Energy to make ATP!

  2. Plant Energy and Animal Energy • What would we look like if we had chlorophyll in our skin? • What if all our energy was from photosynthesis? • Luckily, it isn’t! Our mitochondria break down materials to give us energy!

  3. Cellular Respiration Where? MITOCHONDRIA What? BREAKING DOWN FOOD TO MAKE ATP How? 1) GLYCOLYSIS 2) CITRIC ACID CYCLE 3) ELECTRON TRANSPORT CHAIN Why? TO GET ENERGY!!!!

  4. Photosynthesis & Cellular Respiration PHOTOSYNTHESIS H2O + CO2 + Light C6H12O6 + O2 CELLULAR RESPIRATION C6H12O6 + O2 H2O + CO2 + ATP ATP

  5. O2D2-Hehe-a little Star Wars humor…get it? • ANAEROBIC-no oxygen required • GLYCOLYSIS • AEROBIC-oxygen required • CITRIC ACID CYCLE • ELECTRON TRANSPORT CHAIN

  6. GLYCOLYSIS-”Sugar,Sugar…” Where? Cytoplasm What? A series of chemical reactions that break down glucose How? Breaks down glucose into 2 molecules of pyruvic acid Why? To get pyruvic acid out! p. 238

  7. Citric Acid Cycle-”Peaches…” Where? Inner mitochondrial membrane What? Breaks down acetyl-CoA to form ATP and CO2 p. 239

  8. ELECTRON TRANSPORT CHAIN Where? Inner membrane of mitochondria What? Energized electrons move from protein to protein How? NADH and FADH2 give up electrons Why? To make 32 ATP!!! p.240

  9. FERMENTATION When? When cells are short on oxygen What? Anaerobic process that follows glycolysis until oxygen is available. How? Lactic Acid Fermentation or Alcoholic Fermentation Why? To produce energy when oxygen is low

  10. LACTIC ACID Glucose Pyruvic Acid Lactic Acid + 2ATP Occurs in bacteria, plants, and animals Muscle fatigue ALCOHOLIC Glucose Pyruvic Acid Alcohol + 2ATP Yeast FERMENTATION

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