Soil & Aquatic Microbes Deck (Final) Flashcards

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1
Q

The process of using microorganisms (microbes) to extract metals of economic interest from rock ores or mine waste

A

What is biomining?

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2
Q

An assemblage of surface-associated microbial cells that is enclosed in an extracellular polymeric substance matrix

A

What is biofilm?

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3
Q

Name 4 benefits of biofilms.

A

1) Cell-to-cell communication
2) Share resources
3) Protection
4) Help genetic info transfer

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4
Q

Differentiate between ectomycorrhizal and endomycorrhizal fungi.

A

Ectomycorrhizal - do not penetrate deeply into plant

Endomycorrhizal - penetrate deeply into plant

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5
Q

A type of endomycorrhizae.

A

What is the vesicular-arbuscular mycorrhizae (VAM)?

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6
Q

What is a major benefit of mycorrhizae?

A

Enhancing plant’s uptake of water and minerals, as well as distributing organic substances with different plants

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7
Q

Symbiotic relationship between green plant and fungi

A

What is mycorrhiza?

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8
Q

Name the 3 freshwater zones.

A

1) Littoral
2) Limnetic & Profundal
3) Benthic

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9
Q

Name the 4 regions of the pelagic (water column) zone in marine ecosystems (HINT: NEAB).

A

1) Neuston
2) Euphotic
3) Aphotic
4) Benthos

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10
Q

Marine zone: air-water interface

A

What is neuston?

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11
Q

Marine zone: receives light, allowing phototrophic growth

A

What is euphotic?

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12
Q

Marine zone: below the reach of light; only heterotrophs & lithotrophs are found here

A

What is aphotic?

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13
Q

Marine zone: ocean floor/sediment below the surface; thermal vent communities i.e., benthic organisms found here

A

What is benthos?

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