Respiration

    Cards (10)

    • Exercise
      • may lead to insufficient oxygen
      • oxygen debt
      • Additional oxygen needed to react with lactic acid to remove it from cells
    • Exercise -
      • High demand for energy
      • supply oxygenated blood at a higher rate to muscles
      • higher - heart rate , breathing volume , breathing rate
    • Catabolic Reactions
      • larger molecules broken down into smaller ones
      • excess proteins are broken down to urea
      • in the liver lactic acid is converted back to glucose
    • Respiration is exothermic and release energy
    • Anaerobic
      • produce less energy
      • muscles build up of lactic acid muscles fatigue - reduce efficient contraction
      • Glucose --- lactic acid
    • Anaerobic
      • yeast and plants
      • used in making bread and alcoholic drinks
      • produce ethanol
      • fermentation
      • glucose --- ethanol + carbon dioxide
    • Aerobic
      • produce more energy
      • glucose + oxygen ---- carbon dioxide + water
    • Respiration
      • needed for energy - movement - generate heat to keep warm
    • Anabolic reactions
      • synthesis of amino acids - making proteins - requires glucose and nitrates
      • synthesis using glucose - cellulose , starch , glycogen
      • synthesis of lipids - glycerol , 3 fatty acids
    • Anabolic reactions
      • joining of small molecules to form larger molecules
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