Post on 18-Jan-2016
WATER, CARBON, NITROGEN, & PHOSPHOROUS
Chemical Cycles
Water Cycle
1. Sun2. Clouds/
Condensation3. Evaporation4. Precipitation5. Ocean6. Where can we draw
transpiration?1. Transpiration is the
evaporation of water from plants
Carbon Cycle
Two Major Processes: Cellular Respiration:
O2 + Glucose CO2 + H2O
Photosynthesis: CO2 + H2O Glucose +
O2
Nitrogen Cycle
Nitrogen is a major component in protein and DNA
• Found in water as -ammonia (excreted by aquatic animals)-nitrites (formed by bacteria)-nitrates (formed by bacteria)
Phosphorus Cycle
Phosphorous is a major component in DNA and ATP
Initially comes from weathered rock