Ch14 Flashcards
ecosystem
interactions/exchanges between organisms and their environment
niche
the SPECIFIC role of an organism in an ecosystem
guilds
groups of organisms that carry similar processes
What are the difference between ecosystems and niches
biofilms
whar are the adcantages of biofilms
communites of microbe held together by created extracellular polysacharrides
how could microbe communities be studied
cultivation independent and dependent techniques
Explain the Wiinogradsky column
cultivation dependent technique;…
What are cultivation-independent techniques
16s rRNA direct sequencing without growthe or cloning
DGGE is one (breaking done genome and compare to others by band size directly
TRFLP indirect method
FISH separate cells in a sample
Flow cytometry
Stable isotope method (dispersive, conservativ/e, and semi conservative; based off of density/weight of DNA)
MEtagenomics (creation of different genomic libraries
Operational taxonomic unit (OTU)
Organisms that share at least 97% of SSRMA SHIT
What are the different hoix=zionz of soil
A O all that shit
Lytic viruses cause bacteria to lyse ig
What percentage of the oceANS MAS IS MICROBIAL
98%
dead zones
what is the top thing that contributes to the carbon cycle in marine ecosystems
WHat do
viral mediated lysis
most life is present around which location of the ocean
dark mid water-zone
deep- sea zone
the top
explain explain
how much production reaches the sea floor?
1%
oligotrophic microbes
differences between abundance and diversiTY
do not like nutrients
WHat is more abundant in oceans? Which has more biomass
viruses; bacteria and archaea
what is the dilution to extinction method? what do they have to do with oligotrophic molecules
proteorhodopsin; what is the reason for polyphasic taxonomy?
;it hars for the gathera ll sorts of information and grouping it together since it is difficult to cultute
Freshwater Ecosystems
warmer aerobicupper level
colder anoxygeniclower level
themoclinr middle levEl
STARRRRRSTARRSTARRTerrestrial Ecosystems
Name all horizons and decribe O A B C BEdrock, molten layer, core
soil is a mix of
clay silt, loarn, sand (sand is low in microbial life, clay is more conducive for biofilms and life)
What determines the culture
aggregation/clumping of soil
RHIZOSPHERE, what is the symbiosis
impoertant for nitogen cycle, possesses a lot of organic carbon, important for nitrification
plants and microbes
RHIZOSPHERE, what is the symbiosis
impoertant for nitogen cycle, possesses a lot of organic carbon, important for nitrification
plants and microbes
RHIZOSPHERE, what is the symbiosis
impoertant for nitogen cycle, possesses a lot of organic carbon, important for nitrification
plants and microbes
soil microbiome is important
whaty is lignon
2nd biggest biopolymer something ltke that
cellulose is the largest reservoir of carbon
lignon broen studd
cellulose green stuff
biodegradation\bioremediation/biotimulation/bioaugmentation
xenobiotics
2nd one is chemicals not found in nature
chemolithoautotrophs are the reasons for energy prouduction in places where there is not sunlight
hydrogen sulfide can be used i guess
