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Cellular Respiration

Cellular Respiration. Cellular Respiration. The process that releases energy by breaking down glucose and other food molecules in the presence of oxygen. Purpose is to produce energy!. Stages of Aerobic Respiration. Aerobic : OXYGEN IS PRESENT

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Cellular Respiration

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  1. Cellular Respiration

  2. Cellular Respiration • The process that releases energy by breaking down glucose and other food molecules in the presence of oxygen. • Purpose is to produce energy!

  3. Stages of Aerobic Respiration • Aerobic: OXYGEN IS PRESENT 1. Glycolysis: the process in which one molecule of glucose is broken in half, producing two molecules of pyruvic acid, a 3-carbon compound. 2. Kreb’s Cycle/Citric Acid Cycle: pyruvic acid is broken down into carbon dioxide in a series of energy-extracting reactions. 3. Electron Transport Chain: uses the high energy electrons of the Kreb’s Cycle to convert ADP to ATP. • Produces the most ATP (energy) of any stage!

  4. Chemical Equation • Copy in notes!

  5. Stages of Anaerobic Respiration • Anaerobic: NO OXYGEN IS PRESENT • After glycolysis, goes to fermentation.

  6. Fermentation • Releases energy from food molecules by producing ATP in the absence of oxygen. • Alcoholic fermentation: used by yeasts and other microorganisms forming ethyl alcohol and carbon dioxide. • Used to produce alcoholic beverages. • The CO2 released causes bread dough to rise. • Lactic Acid fermentation: regenerates NAD+ so that glycolysis can continue. • Produced in muscles during rapid exercise when body is lacking oxygen • Cause of muscle soreness.

  7. Comparing/Contrasting Anaerobic and Aerobic Respiration

  8. Energy Totals • Both plants and animals carry out the final stages of cellular respiration in the mitochondria. • Copy the flow chart below. • Notice that 36 ATP are produced!!!

  9. Comparing/Contrasting Photosynthesis and Cellular Respiration

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