Transcript Nutrient Cycle

HOME
 Water
that has condensed in the air forms
clouds
 Drops fall to Earth and accumulate in
oceans and lakes
Back to
the
Water
Cycle
Evaporation
Using Water
 Plants
and animals need water to live
 Water is pulled from bodies of water or
from the ground (groundwater)
Back to
the
Water
Cycle
Precipitatio
n
Waste
 Plants
return water to environment
through transpiration
• The evaporation of water from their leaves
 Animals
return water to ground and
bodies of water through urine
Back to
the
Water
Cycle
Using Water Evaporation
 Water
from oceans, lakes, and other
bodies of water re-enters the atmosphere
through evaporation
Back to
the
Water
Cycle
Waste
Precipitation
HOME
 The
process where plants use CO2 from
the atmosphere to make high-energy
carbon molecules (glucose)
Back to
the
Carbon
Cycle
Respiration
Gas Exchange Metabolism
Pollution
 Organisms
use high energy carbon
molecules for growth
Back to
the
Carbon
Cycle
Photosynthesis
Respiration
Waste
Decompositio
n
 CO2
is released through aerobic
respiration (breathing, for example)
Back to
the
Carbon
Cycle
Metabolism
Decompositio
n
Photosynthesis
 Carbonates
released into ground and
water supply
Back to
the
Carbon
Cycle
Metabolism
Photosynthesis
Decomposition
Gas Exchange
 CO2
is exchanged between the air and
water
Back to
the
Carbon
Cycle
Waste
Photosynthesis
 When
organisms die and decay, the
carbon molecules in them enter the soil.
 Microorganisms break down the
molecules, releasing CO2
Back to
the
Carbon
Cycle
Metabolism
Photosynthesis
Pollution
 Remains
of dead organisms are
converted into fossil fuels (over millions
of years!)
 Combustion of fossil fuels and wood
releases CO2
Back to
the
Carbon
Cycle
Metabolism Using Water
HOME
 Lightning
and bacteria convert
atmospheric nitrogen into nitrates (NO3)
and ammonia (NH3)
Back to
the
Nitrogen
Cycle
Protein
Return to Atmosphere
Production
 Plants
use nitrogen molecules to make
amino acids
Back to
the
Nitrogen
Cycle
Nitrogen FixationConversion
 Consumers
convert plant proteins to
animal proteins
Back to
the
Nitrogen
Cycle
Protein Production Waste
 Decomposers
break down animal and
plant matter into nitrogen compounds
Back to
the
Nitrogen
Cycle
Conversion
Return to Atmosphere
Pollution
 Nitrogen
compounds break down into
gas and return to air
Back to
the
Nitrogen
Cycle
Waste
Nitrogen Fixation
 Runoff
of nitrates in fertilizers enters
groundwater and soil
Back to
the
Nitrogen
Cycle
Protein Production
 Nitrous
Oxide from burning fossil fuels
falls as Nitric Acid in rainwater
Back to
the
Nitrogen
Cycle
Waste
Stand up to stretch, but don’t
distract others around you!!!
Click on the link below to learn
about the Phosphorous Cycle :o)
http://www.sumanasinc.com/webcon
tent/animations/content/phosphoro
uscycle.html