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Published byTodd McCoy Modified over 9 years ago
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What goes around, comes around Biogeochemical cycles and you
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Think about it! What elements are you made of? Where did those molecules come from? Where will the elements go when you decompose? Why are biogeochemical cycles important to you?
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Biogeochemical cycles Atoms move from biotic to abiotic and back Reservoirs – points at which atoms spend a significant time Processes – transform atoms through stages and states
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Water cycle Importance: Maintain homeostasis (temperature, pH) Dissolves solutes Cellular respiration makes energy in your cells Aids in digestion
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So what sounds familiar? Processes Precipitation Condensation Evaporation Transpiration Runoff infiltration Locations Ocean Lake Cloud River Grass Deer Human Atmosphere Spring aquifer
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Carbon cycle Energy source (carbohydrates) Backbone of organic molecules (carbs, proteins, lipids, nucleic acids)
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Carbon cycle
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Nitrogen cycle Present in all proteins (structural and enzymatic) and nucleic acids (DNA and RNA)
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Legumes are the stars!
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These are legumes, too!
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Rhizobium bacteria in nodules on legume roots start the cycle
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Phosphorus cycle Present in nucleic acids Critical mineral for bones and teeth
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Who cares? You do! Why?
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