2.2 Flashcards
Nutrients
chemicals that are required for plant and animal growth and
other life processes
stores
Nutrients are accumulated for short or long periods of
time in Earth’s atmosphere, oceans, and land masses.
nutrient cycles
continuous flows of nutrients in and out of stores are called
FIVE main nutrients
Carbon, hydrogen and oxygen: cycle between living organisms and the atmosphere.
Nitrogen: found in proteins and DNA
Phosphorus: enter the atmosphere from sedimentary rock.
Carbon Photosynthesis
Removes carbon dioxide from the air
Cellular Respiration -Carbon
plants and animals add carbon dioxide to the air
Decomposition - carbon
decomposers add carbon dioxide to the air.
Sedimentation
the process that contributes to the formation of
sedimentary rock
Carbonate
a combination of carbon and oxygen
(CO3
2) that is dissolved in ocean water
Photosynthesis
chemical reaction that
converts solar energy into chemical energy. During photosynthesis,
carbon, in the form of carbon dioxide in the atmosphere, enters through
the leaves of plants and reacts with water in the presence of sunlight to
produce energy-rich sugars
Cellular respiration (breathing)
the process in which both plants and animals
release carbon dioxide back into the atmosphere by converting
carbohydrates and oxygen into carbon dioxide and water
nitrogen
a key part of the structure of DNA and proteins.
carbon
an essential component in the chemical reactions that sustain life. All living things contain billions of carbon atoms in their cells.
denitrification
Nitrogen is returned to the atmosphere in a process
leaching
Nitrogen is returned to the atmosphere in a process
