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respiration (need for respiration (contration of muscles (for movement,…
respiration
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aerobic respiration
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it is a very slow process as glucose needs to get oxidised for energy to get released and that happens in steps
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the glucose molecules get oxidized hence releasing 2, three carbon molecules which release energy. then the three carbon molecules break to carbon dioxide releasing more energy
anaerobic respiration: it is the process in which cells break down nutrients to energy without use of oxygen
in yeast
in brewing industries: yeast along with sugar into fermentation sugar is the substrate for aerobic respiration while yeast produces ethanol and carbon dioxide. carbon dioxide is allowed to escape while ethanol is packaged
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in human muscles
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removal of lactic acid
the heart rate remains high so it is able to remove excess lactic acid to kidneys. where rapid and deeper breathing rate ensures that there is a lot of oxygen which is required to break down lactic acid to carbon dioxide and water.
anaerobic respiration produces an oxygen debt. This is the amount of oxygen needed to oxidize lactic acid to carbon dioxide and water. The existence of an oxygen debt explains why we continue to breathe deeply and quickly for a while after exercise.
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