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BIOGEOCHEMICAL CYCLES

BIOGEOCHEMICAL CYCLES. NEEDS OF ORGANISMS. All organisms need more then just Energy 95 percent of body is made up of just 4 elements: Hydrogen Oxygen Nitrogen Carbon. RECYCLING IN THE BIOSPHERE. Matter is recycled in ecosystems

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BIOGEOCHEMICAL CYCLES

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  1. BIOGEOCHEMICAL CYCLES

  2. NEEDS OF ORGANISMS • All organisms need more then just Energy • 95 percent of body is made up of just 4 elements: • Hydrogen • Oxygen • Nitrogen • Carbon

  3. RECYCLING IN THE BIOSPHERE • Matter is recycled in ecosystems • Biogeochemical cycles = chemicals are passed from one organism to another (BIO), and also travel through air and soil (GEO).

  4. BIOGEOCHEMICAL CYCLES • Matter can cycle through the biosphere because elements are not “used up,” but are only transformed.

  5. Carbon Cycle • One of the most important to humans because carbon is: • one of the primary elements forming human tissues • necessary to plants, the basis of human food

  6. Carbon Cycle • Important to the climate system : • carbon dioxide (CO2 ) and methane (CH4 ) are greenhouse gases which help set global temperatures

  7. Nitrogen Cycle • Important cycle because: • nitrogen is a necessary nutrient • nitrogen is part of acid rain

  8. Phosphorus Cycle • Important because: • Cannot be transferred from the ocean to plants very effectively. • Incorporated into many molecules essential for life such as ATP (Energy source) and backbone of DNA and RNA

  9. CYCLES – NITROGEN, CARBON, AND PHOSPHOROUS AIR SOIL LIFE

  10. SUMMARY – VENN DIAGRAM C & N Carbon Nitrogen C, N, & P C & P N & P Phosphorus

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