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Biogeochemical Cycles

THE PASSWORD TO EDIT THE SET IS Cheney
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element
pure chemical substance made up of same atoms
biodiversity
variety of organisms in an ecosystem. Indicator of the health of an ecosystem.
abiotic
nonliving, physical features of the environment, including air, water, sunlight, soil, temperature, and climate
fossil fuels
coal, oil, natural gas, and other fuels that are ancient remains of plants and animals. Hydrocarbon
solubility
the ability to dissolve in another substance
photosynthesis
process by which plants use the sun's energy to convert water and carbon dioxide into sugars
calcium carbonate
CaCO3 - shells, limestone
carbon cycle
biogeochemical cycle that describes transformation of these compounds in nature CaCO3, CO2, HCO3−, CH4, R-CH3
nitrogen cycle
biogeochemical cycle that describes the transformation of these compounds in nature N2, NH4+, NH3, NO2-, NO3, R-NH2
pH
measure of the concentration of H+, power of Hydrogen
chemical formula
notation that shows what elements a compound contains and the ratio of atoms or ions in the compound
biogeochemical cycle
A pathway by which a chemical elements moves through both living and non-living components of an ecosystem
oxygen
O2, diatomic molecule which composes 21% of dry air
carbon dioxide
CO2, colorless, odorless gas, produced by burning carbon and organic compounds and by respiration and absorbed by plants in photosynthesis.
bicarbonate ion
HCO3-, decreases pH of environment
methane
CH4, odorless flammable gas that is the main constituent of natural gas
carbohydrate
CH2O, common names sugar and starches. Form of chemical energy for cells, broken down into glucose
atmospheric nitrogen
N2, diatomic molecule which composes 78% of dry air
ammonia
NH3, A colorless gas with a characteristic pungent smell. It dissolves in water to form a strong base solution.
nitrates
NO3-, compound used by plants for nutrients
protein
R-NH2, large biomolecue made of amino acids and used as structural material for cells
combustion
process of burning, producing heat and light
assimilation
building living tissue
nitrogen fixation
process which bacteria convert atmospheric nitrogen to usable forms for plants