MICRO BIO FINAL (CHP 24) - Ecology

Question 1

study of microbes in natural habitats

Answer 1

microbial ecology

Question 2

study of practical uses of microbes in food processing, industrial production & biotechnology

Answer 2

applied microbiology

Question 3

the studies that deal with both “biotic” n “abiotic” components of an organism’s environment

Answer 3

ecology

Question 4

living n dead

Answer 4

biotic component

Question 5

never living

Answer 5

abiotic component

Question 6

feeding on other living organisms n obtain energy from bonds present in the organic substrates

Answer 6

consumers

Question 7

something is ___________ if CO2 is sole source from which they can obtain carbon for growth.

Answer 7

autotrophs

Question 8

derived energy from simple inorganic compounds such as ammonia, sulfides & hydrogen by using “redox reactions”

Answer 8

lithotrophs

Question 9

most “producers” are ___________ organisms

Answer 9

photosynthetic

Question 10

producers: provide _______ source that drives the trophic pyramid & produce/assimilating _______ carbon form the atosphere.

Answer 10

energy

inorganic

Question 11

grows best under “high” atmospheric pressure (bacteria)

Answer 11

barophilic

Question 12

“5c”

Answer 12

psychrophilic

Question 13

salt-loving

Answer 13

halophailic

Question 14

abyssal ______- communities with extreme adapations

Answer 14

zone

Question 15

(2) ex. of salt-tolerant species

Answer 15

pseudomonas

vibrio

Question 16

what breaks down & absorbs the organic matter of dead organisms

Answer 16

decomposers

Question 17

more than one kind of microbe involved in “bioremadation”

Answer 17

consortium

Question 18

the continous movement of water on, above & below the surface of the Earth

Answer 18

hydrologic cycle (H2O cycle)

Question 19

man made compounds (can be broken down by decomposers)

Answer 19

bioremediation

Question 20

the zone of soil surrounding the roots of plants

Answer 20

rhizosphere

Question 21

assocation of fungi w/ plant roots, anchors plants & increases nutrients

Answer 21

myocorrhizae

Question 22

(3) gases in the carbon cycle

Answer 22

CO2
CO
CH4

Question 23

in dealing w/ the Hydrosphere (water), what is 2 genus’ of bacteria whose habitat is water?

Answer 23

pseudomonas (they also are salt-tolerant)

vibrio

Question 24

in dealing with the Lithosphere (land), how is Nitrogen captured in association w/ the roots of legumes?

Answer 24

• bacteria Rhizobia infects the roots

- causes the formation of special nitrogen fixing organs called Root Nodules

Question 25

Rhizobia: gram (?) shape

Answer 25

(-) motile, rod-shaped

Question 26

what draws CO2 out of the atmosphere

Answer 26

photosynthesis

Question 27

(2) that use photosynthesis

Answer 27

plants | algae

Question 28

organic carbon is taken in by "consumers" | then decomposed by ? (2 ex.)

Answer 28

m/o | fungi & bacteria

Question 29

____ organisms participate directly in recycling

Answer 29

all | -but only one "category" of m/o have metabolic pathways

Question 30

(3) that cycles of complex stems relay on

Answer 30

producers consumers decomposers

Question 31

(3) composites of abiotic protion

Answer 31

mineral particles water atmospheric gas

Question 32

what is a dynamic ecosystem

Answer 32

soil

Question 33

the composition of the lithosphere (land)

Answer 33

soil microbiology

Question 34

eutrophicaiton: water is nutrient ______ by oligotrophic

Answer 34

limited

Question 35

what is the most common indicator m/o

Answer 35

e. coli- only natient habitat is inside an animals gut

Question 36

pathogens- ________ & ________ consuming

Answer 36

difficult | time

Question 37

what is a way to determine the number of an indicator m/o in a volume of water??

Answer 37

standard plate count | incubate colonies

Question 38

algae can infect shellfish is that a threat to humans?

Answer 38

yes, if we eat the infected shellfish

Question 39

algae -____________ blooms

Answer 39

dinoflegenate

Question 40

some blooms produce ______ (can cause fish to die)

Answer 40

toxins

Question 41

algae- ________ tides

Answer 41

red

Question 42

what eukaryotic group can be seen from outer space

Answer 42

flagellated algae

Question 43

slowly decaying orangic litter from plant & animal tissues?

Answer 43

humus

Question 44

preventition of disease in water supplies

Answer 44

attempt to survey | focuse on detecting fecel containmination