respiration

• a series of chemical controlled reactions
• ATP is used for muscle cell contraction, cell division, protein synthesis
• aerobic respiration requires energy and oxygen and takes place in the mitochondria
• aerobic respiration turns glucose to 2 pyruvate releasing 2ATP and then further breaks down to co2 and water releasing lots of ATP
• fermentation occurs when oxygen isn't available (lungs cant produce enough oxygen or plants growing in waterlogged soil)
• fermentation in animals is reversible it turns glucose into pyruvate and then into lactate yielding 2 ATP
• fermentation in plants breaks glucose into pyruvate into co2 and ethanol yielding 2ATP