What goes around, comes around Biogeochemical cycles and you.
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Transcript of What goes around, comes around Biogeochemical cycles and you.
What goes around, comes around
Biogeochemical cycles and you
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?
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
Water cycle
Importance:Maintain homeostasis (temperature, pH)Dissolves solutesCellular respiration makes energy in your
cellsAids in digestion
So what sounds familiar?
Processes Precipitation Condensation Evaporation Transpiration Runoff infiltration
Locations Ocean Lake Cloud River Grass Deer Human Atmosphere Spring aquifer
Carbon cycle
Energy source (carbohydrates)Backbone of organic molecules (carbs,
proteins, lipids, nucleic acids)
Carbon cycle
Nitrogen cycle
Present in all proteins (structural and enzymatic) and nucleic acids (DNA and RNA)
Legumes are the stars!
These are legumes, too!
Rhizobium bacteria in nodules on legume roots start the cycle
Phosphorus cycle
Present in nucleic acidsCritical mineral for bones and teeth
Who cares?
You do! Why?