Bio Flashcards 1

Front 1

Biogeochemical Cycle

Back 1

a pathway by which a chemical substance moves through both biotic (biosphere) and abiotic (lithosphere, atmosphere, and hydrosphere) compartments of Earth.

Front 2

Ground Water

Back 2

water held underground in the soil or in pores and crevices in rock.

Front 3

Transpiration

Back 3

the process where plants absorb water through the roots and then give off water vapor through pores in their leaves

Front 4

Precipitation

Back 4

rain, snow, sleet, or hail that falls to the ground.

Front 5

Runoff

Back 5

the draining away of water (or substances carried in it) from the surface of an area of land, a building or structure, etc.

Front 6

Evaporation

Back 6

the process of a liquid changing into a gas

Front 7

Percolation

Back 7

the process of a liquid slowly passing through a filter

Front 8

Nitrogen Fixation

Back 8

the chemical processes by which atmospheric nitrogen is assimilated into organic compounds, especially by certain microorganisms as part of the nitrogen cycle.

Front 9

Respiration

Back 9

a process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances.

Front 10

Combustion

Back 10

rapid chemical combination of a substance with oxygen, involving the production of heat and light.

Front 11

Erosion

Back 11

the process of eroding or being eroded by wind, water, or other natural agents.

Front 12

Assimilation (biology)

Back 12

the combination of two processes to supply cells with nutrients

Front 13

Ammonification

Back 13

decomposition with production of ammonia or ammonium compounds especially by the action of bacteria on nitrogenous organic matter.

Front 14

Nitrification

Back 14

the biological oxidation of ammonia or ammonium to nitrite followed by the oxidation of the nitrite to nitrate

Front 15

Denitrification

Back 15

the loss or removal of nitrogen or nitrogen compounds; specifically : reduction of nitrates or nitrites commonly by bacteria (as in soil) that usually results in the escape of nitrogen into the air.