Topic 2

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1
Water Molecule Properties
-Bipolar
-London Dispersion and Dipole Dipole Forces
-Universal Solvent
2
Cohesion
-Attraction of water to other water molecules
3
Adhesion
Attraction of water molecules to other particles
4
Importance of H2O
-Maintains stable heat balanace
-Universal Solvent
-Major component of cells and intercellular/extracellular fluid
-Organisms require water for a stable environment
5
Carbon+O2 Cycle
Consists of Cellular Resp and Photosynthesis
6
Organic Molecules
Molecules makde of Carbon and Hydrogen
7
Carbon Source
Releases Carbon
Volcanoes and Burning Fuel
8
Carbon Sink
Carbon is stored
Coal/Petroleum
9
What is Nitrogen vital for?
ATP, DNA, Amino Acids
10
Nitrogen Fixation
Convers N2 into compounds that are usuable by plants, usually NO3 or NH3
Can be accomplished with lightning or bacteria
11
Nitrification
Converts NH3 into NO3
Converts compounds into NO3 so they can be usuable by bacteria
12
Denitrification
NO3 breaks down into N2
Often happens in low o2 areas, bacteria uses the 02 for cell resp and photosynthesis
13
Legume
Any plant apart of the Fabacae family
(Beans, Lentil, Peas)
14
Phosphorus Cycle
Movement of phosphates from earth to organisms and then back around
15
What is Phosphorus important for?
-Bones/Teeth
-ATP
-DNA
-Cell Membranes
16
Eutrification
Buildup of nutrients in aquatic ecosystems
17
Algal Bloom
Overgrowth of microscopic algae in fresh salt or wetland waters
18
Long Term Phosphorus Cycle
Rocks -> Ocean Floor/Bones & Teeth -> Weather
19
Short Term Phosphorus Cycle
Decomposers -> Phosphates in Soil/Water -> Food Webs
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