Soil & Aquatic Microbes Deck (Final) Flashcards
The process of using microorganisms (microbes) to extract metals of economic interest from rock ores or mine waste
What is biomining?
An assemblage of surface-associated microbial cells that is enclosed in an extracellular polymeric substance matrix
What is biofilm?
Name 4 benefits of biofilms.
1) Cell-to-cell communication
2) Share resources
3) Protection
4) Help genetic info transfer
Differentiate between ectomycorrhizal and endomycorrhizal fungi.
Ectomycorrhizal - do not penetrate deeply into plant
Endomycorrhizal - penetrate deeply into plant
A type of endomycorrhizae.
What is the vesicular-arbuscular mycorrhizae (VAM)?
What is a major benefit of mycorrhizae?
Enhancing plant’s uptake of water and minerals, as well as distributing organic substances with different plants
Symbiotic relationship between green plant and fungi
What is mycorrhiza?
Name the 3 freshwater zones.
1) Littoral
2) Limnetic & Profundal
3) Benthic
Name the 4 regions of the pelagic (water column) zone in marine ecosystems (HINT: NEAB).
1) Neuston
2) Euphotic
3) Aphotic
4) Benthos
Marine zone: air-water interface
What is neuston?
Marine zone: receives light, allowing phototrophic growth
What is euphotic?
Marine zone: below the reach of light; only heterotrophs & lithotrophs are found here
What is aphotic?
Marine zone: ocean floor/sediment below the surface; thermal vent communities i.e., benthic organisms found here
What is benthos?
