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MicroPara LEC > Lesson 9 > Flashcards

Lesson 9 Flashcards

1
Q

They serve as sources of carbon, oxygen, hydrogen, nitrogen, phosphorus, and sulfur

A

Nutrients

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2
Q

How many are the naturally occuring elements

A

92

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3
Q

Cell are composed of between _____ and _____ of water

A

70% and 95%

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4
Q

Complete drying process

A

Dessication

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5
Q

Organisms that “love high temperatures”

A

Thermophiles

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6
Q

Organisms that “grow best at moderate” temperatures

A

Mesophiles

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7
Q

Organisms that “love cold temperaturee”

A

Psychrophiles

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8
Q

Micoorganisms that prefer “warmer temperature”

A

Psychroduric organisms

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9
Q

They can be found in hot springs, compost pits, and silage as well near hydrovents

A

Thermophiles

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10
Q

Most pathogens and indigenous microflora are

A

Mesophiles

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11
Q

They grow best at normal body temperature (37 C)

A

Mesophiles

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12
Q

They thrive in cold ocean water; algae pink often seen in snow

A

Psychrophiles

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13
Q

Those that can live in stomach and in pickled foods

A

Acidophiles

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14
Q

Acidophiles prefer a ph of _______

A

2 to 5

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15
Q

They thrive in highly acidic environment

A

Acidophiles

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16
Q

They prefer an alkaline environment, such is found inside the intestine

A

Alkaliphiles

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17
Q

Soils laden in carbonate is called

A

Soda lakes

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18
Q

The bacterium that causes cholera

A

Vibrio Cholerae

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19
Q

The only human pathogen that grows well above ph 8

A

Vibrio Cholerae

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20
Q

The pressure that is exerted on a cell membrane by solutions both inside and outside the cell

A

Osmotic pressure

21
Q

The concentration of solutes in the environment outside of a cell is greater than the concentration of solutes inside the cell

A

Hypertonic solution

22
Q

Shrinkage is called

A

Crenation

23
Q

Cytoplasm shrink away from the cell wall

A

Plasmolysis

24
Q

Cytoplasm shrinks away from the cell wall

A

Plasmolysis

25
Q

The concentration of solutes outside the cell is less than the concentration of solutes inside the cell

A

Hypotonic solution

26
Q

The escape of cytoplasm from the cell

A

Plasmoptysis

27
Q

The concentration of solution outside the cell equals the concentration of solutes inside the cell

A

Isotonic solution

28
Q

No changes in pressure occurs within the cell

Hypertonic Solution
Hypotonic Solution
Isotonic Solution

A

Isotonic solution

29
Q

Internal pressure is increased

Hypertonic Solution
Hypotonic Solution
Isotonic Solution

A

Hypotonic solution

30
Q

Internal pressure is decreased

Hypertonic Solution
Hypotonic Solution
Isotonic Solution

A

Hypertonic solution

31
Q

Shrinking of the cell

Hypertonic Solution
Hypotonic Solution
Isotonic Solution

A

Hypertonic solution

32
Q

Resulting in swelling of the cell

Hypertonic Solution
Hypotonic Solution
Isotonic Solution

A

Hypotonic solution

33
Q

Microbes that actually prefer salty environments

A

Halophilic

34
Q

It refers to salt

A

Halo

35
Q

It refers to love

A

Philic

36
Q

Do not prefer to live in salty environments but are capable of surviving

A

Haloduric

37
Q

Is staphylococcus a haloduric??

A

Yes

38
Q

Thrive deep in the ocean and in oil wells, where the atmosphere pressure if very high

A

Piezophiles

39
Q

Prefer the same atmosphere that humans do

A

Obligate aerobes

40
Q

Atmosphere that require oxygen

A

Microaerophiles

41
Q

Atmosphere that is killed by the oxygen

A

Obligate anaerobes

42
Q

Earliest successful attempts to culture microorganisms in a laboratory setting were made by

A

Ferdinand Cohn
Joseph Schroeter
Oscar Brefeld

43
Q

He used slices of boiled potatoes on which to culture bacteria

A

Robert Koch

44
Q

It was used as a solidfying agent in Koch’s culture media

A

Gelatin

45
Q

They suggested use of agar

A

Fanny Hesse

46
Q

Invented the glass petri dishes

A

Richard Julius Petri

47
Q

Became the first person to obtain a pure cultute of bacterium

A

Joseph Lister

48
Q

They made significant contributions to the GERM THEORY of disease

A

Robert Koch
Louis Pasteur

MicroPara LEC (29 decks)

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