Biogeochemical Cycles

Question 1

Organisms that obtain their carbon from inorganic compounds like photosynthetic organisms

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autotrophs

Question 2

It contains all the living components.

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biosphere

Question 3

It is the amount of organic matter present at any point in time in a system.

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biomass

Question 4

It is the direct absorption of a chemical into an individual organism.

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bioconcentration

Question 5

Microorganisms that cannot tolerate oxygen

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anaerobic

Question 6

A negative interaction that occurs when organisms require the same limited resource

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competition

Question 7

Microorganisms that can switch their metabolism bet. aerobic & anaerobic pathways w/ or w/o O2

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facultative

Question 8

It is synonymous to bioaccummulation that highlights the concentrating effect of a contaminant.

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biomagnification

Question 9

A biological interaction where a specie bigger in size feeds on its prey (smaller in size).

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predation

Question 10

Relationship between species in w/c one benefits at the expense of the other.

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parasitism

Question 11

Organisms that depend on organic matter produced by others to obtain their carbon

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heterotrophs

Question 12

It is the interaction between living things and their abiotic environment.

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ecosystem

Question 13

Refer to more complex organic chemicals i.e. starch, cellulose, proteins that are synthesized

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organic matters

Question 14

It is the process in w/c the sun's energy is captured & converted to chemical energy

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photosynthesis

Question 15

Two chemical cycles that can stimulate nuisance algal growth & can cause eutrophication.

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phosphorus, nitrogen

Question 16

It is a the distribution of how the organisms relate to its physical & biological environment.

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habitat

Question 17

It is a place where biogeochemical processes occur.

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biosphere

Question 18

Atmosphere (air),hydrosphere (water) &lithosphere (land) constitute the ___ component of earth.

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abiotic

Question 19

It shows the movement of a contaminant from a low trophic level to a higher one.

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bioaccummulation

Question 20

These organisms will grow under optimally physical or chemical extremes.

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extremophiles

Question 21

It is the process that releases energy stored in chemical bonds to support metabolic needs.

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respiration

Question 22

It is the interaction of the abiotic spheres and the biotic component.

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ecosphere

Question 23

It is a process in N2 cycle where bacteria utilize atmospheric N2 converting it to ammonia.

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nitrogen fixation

Question 24

It is a type of fermentation in which methane (CH4) is an end product.

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methanogenesis

Question 25

The product from anaerobic respiration

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CH4

Question 26

In a wastewater treatment, it is a process that converts N to ammonia (NH4+ / NH3 ).

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ammonification

Question 27

A group of individuals that possesses a common gene pool and that can successfully interbreed

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specie

Question 28

Organisms that consume herbivores & also known as secondary consumers

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carnivores

Question 29

The only chemical cycle among C, O, N, P, S and H2O cycle that doesn't involve exchange in air.

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phosphorus

Question 30

Refers to the enrichment of N & P in a body of water resulting to excessive growth of plants.

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eutrophication

Question 31

All of the following are things needed by microbes to grow except _____.

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no answer

Question 32

A law that when applied to food web shows the inefficiency of energy transfer producing wastes

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Second Law of Thermodynamics

Question 33

It shows the more complex relationships & interactions of a linear subset of trophic levels.

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food web

Question 34

Organisms that eat plants & are also known as primary consumers

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herbivores

Question 35

It is the sphere that is introduced when natural systems interact with engineered systems.

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technosphere

Question 36

It is the organism’s habitat + role + tolerance limits to all limiting factors.

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niche

Question 37

Determination of productive area required to provide supplies & absorbing wastes produced

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ecofootprinting

Question 38

A law that when applied to an ecosystem means no organism can create its own energy supply

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First Law of Thermodynamics

Question 39

It shows the various nutritional or trophic levels in a simple manner.

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food chain

Question 40

Two cycles closely linked to photosynthesis

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carbon, oxygen

Question 41

In a wastewater treatment, it is a process that converts NO3- to N2 released to the atmosphere.

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denitrification

Question 42

It is the upper limit to population or community size imposed by environmental conditions.

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carrying capacity

Question 43

Microorganisms that rely exclusively on oxygen & cannot grow in its absence.

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aerobic

Question 44

These assimilate simple chemicals and utilize the sun's energy to produce & store compounds

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producers

Question 45

It makes up all the members of a specie in a given area.

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population

Question 46

Two products from degradation of an organic substance w/ excess oxygen

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H2O, CO2

Question 47

Which of the following is not a biome?

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industrial wastewater treatment plant

Question 48

It is the study of structure and function of the ecosphere & its ecosystems.

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Ecology

Question 49

any interdependent or mutually beneficial relationship between two organisms

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symbiosis

Question 50

It refers to the natural passage of chemicals as mediated by organisms.

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biogeochemical cycle

Question 51

It refers to the great variety present in all forms of life.

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biodiversity

Question 52

In a wastewater treatment, it is a process that transforms ammonia to NO2- then to NO3- .

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nitrification

Question 53

Two things organisms require from the environment given appropriate physical setting:

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energy to provide power, chemicals to provide substance

Question 54

A malodorous chemical produced in S cycle w/c is toxic to aquatic life even at very low amount.

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hydrogen sulfide (H2S)

Question 55

It makes up all of the populations that interact in in a given system.

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community

Biogeochemical Cycles

Questions 55

Biogeochemical Cycles

Questions 55