Cycles Flashcards
1
Q
Water cycle
A
Evaporation, transpiration from sun heat
Water vapour in air
Precipitation
Water absorbed by plants and animals
2
Q
Carbon cycle
A
Photosynthesis Respiration Fossilisation Combustion Eaten Death Decomposes use decomposition products in respiration
3
Q
Detritus feeders
A
Earthworms, wood live, earwigs
Breaks material into smaller pieces through eating and egesting
Increase SA for decomposes
4
Q
Decomposes
A
Saprotrophs
Use in respiration, release CO2, generate heat as by product of respiration
5
Q
Feeding assimilation
A
Pass nitrogen containing molecules through food chain
6
Q
Decomposition
A
NO3 => NH3
7
Q
Nitrification
A
NH3=>NO2=>NO3
8
Q
Nitrogen fixation
A
N2=>NH3
9
Q
Dentrification
A
NH3=>N2
Use nitrates as energy source. Remove valuable nitrates from soil, work best in anaerobic conditions
10
Q
Legumes
A
In root nodules
Absorb nitrogen, convert it straight into nitrogen compounds that they can use
