biogeochemical Flashcards

1
Q

bio

A

life

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2
Q

geo

A

earth

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3
Q

chemical

A

elements/compounds

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4
Q

cycle

A

loops

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5
Q

matter gets _____

A

recycled

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6
Q

the forms

A

water, carbon, nitrogen, phosphorus

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7
Q

plants need water for

A

photosynthesis

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8
Q

humans/animals need water for

A

body temperature, blood, removing toxins (peeing)

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9
Q

plants need carbon for

A

making sugar

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10
Q

humans need carbon for

A

skin, bones, muscles, organs

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11
Q

humans need nitrogen for

A

proteins, genetics

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12
Q

humans need phosphorus for

A

cell membranes, ATP, genetic material

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13
Q

feedback loop

A

change of cause + effects (input and output)

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14
Q

feedback loops can be

A

positive or negative

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15
Q

negative feedback loop

A

minimize change (returning back to normal)

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16
Q

example of negative feed back loop

A

sweating

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17
Q

positive feedback loop

A

increases change away from normal

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18
Q

example of positive feedback loop

A

erosion

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19
Q

geosphere

A

rock at and below earth surface (mountains, soil, dirt)

20
Q

biosphere

A

living and once living things

21
Q

atmosphere

A

layers of gases

22
Q

hydrosphere

A

all water (salt, fresh, liquid, vapor, ice)

23
Q

system

A

network of parts, elements or components that interact

24
Q

systems receive and process ______ and produce ______

A

inputs , outputs

25
Q

systems don’t have _______

A

boundaries (difficult to know where one ends and where one begins)

26
Q

inputs for can include ______ energy and ___________ energy

A

solar , geothermal

27
Q

carbon is stored in the __________ and the _______

A

atmosphere , ocean

28
Q

humans __ impact biogeochemical cycles

A

do

29
Q

_________ are matter that organisms require for life processes

A

nutrients

30
Q

the phosphorus cycle is slow or fast

A

SLOW cause it’s mostly from rock

31
Q

respiration

A

use oxygen to relase chemical energy (sugars and water)

32
Q

examples of carbon moving into the atmosphere

A

respiration
volcanoes erupting

33
Q

examples of carbon moving out of the atmosphere

A

photosynthesis
ocean atmosphere exchange

34
Q

carbon in coal oil and gas comes from

A

dead organisms

35
Q

carbon in bodies return to environment by

A

decomposers break body down in simple compounds

36
Q

human processes mainly contribute to the

A

reales of carbon dioxide in atmosphere

37
Q

nitrogen fixation

A

bacteria converts nitrogen gas to ammonia

38
Q

denitrification

A

soil bacteria converts nitrates into nitrogen gas

39
Q

all organisms require nitrogen to make amino acids to then build ___________

A

carbohydrates

40
Q

plants absorb phosphate from

A

soil and water

41
Q

what is the most abundant gas

A

nitrogen

42
Q

________ ________ is taken up by producers during photosynthesis and released by cell respiration

A

carbon dioxide

43
Q

eutrophication

A

-nitrogen/phosphorus runoff
-algae
-dead zone

44
Q

way to stop eurtrophication

A

reduce use/amount of fertilizer

45
Q

open system

A

energy

46
Q

closed system

A

matter