Microbiology (KW) Flashcards

(43 cards)

1
Q

Why are microbes important

A

Soil microbes responsible for breaking down waste and providing nitrogen
Intestinal help by manufacturing vitamins we cannot make ourself
Marine and freshwater microbes are at bottom of food chain

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2
Q

How can microbes be used for industrial application?

A

Produce compounds like acids, alcohols, vitamins, drugs

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3
Q

What is the nomenclature used for microorganism?

A

Genus & species
Always use both with referring to microbe
Ex) Escherichia Coli aka E.Coli

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4
Q

When can you use an abbreviation for microbe?

A

When full name already used once in writing

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5
Q

What does “staphylo” mean?

A

Clustering shape of cells

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6
Q

What does “coccus” mean?

A

Circle shaped

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7
Q

What are some types of microbes?

A

Bacteria, archaea, fungi, protozoa, algae, viruses, multicellular animal parasites

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8
Q

What is a prokaryote?

A

Organisms made up of cells that lack a nucleus or membrane encased organelles

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9
Q

What is a Eurkaryote?

A

Organisms made of cells that possess a membrane bound nucleus that hold genetic material

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10
Q

What type of cell is bacteria?

A

Prokaryotic, unicellular

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11
Q

What are the 3 common shapes of bacteria ?

A

Bacillus/rods
Coccus (round)
Spirillum (spiral)

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12
Q

How do bacteria survive?

A

Metabolizing various organic chemicals derived from breakdown of materials from organisms

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13
Q

How do bacteria reproduce?

A

Binary fission
Asexual

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14
Q

What ways can bacteria be motile?

A

Flagella, pili, fimbriae

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15
Q

What is an archaea?

A

Prokaryotic organism that has cell wall containing no peptidoglycan

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16
Q

What is unique about archae regarding humans?

A

Not known to be human pathogen (does not cause disease in humans)

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17
Q

What is fungi considered?

A

Eurkaryotic organism that can be unicellular or multicellular

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18
Q

How do fungi reproduce?

A

Asexually or sexually

19
Q

What is an example of multicellular fungi?

A

Large. Include molds & mushrooms

20
Q

What is an example of small fungi?

A

Unicellular. Yeasts. Still much larger than bacteria

21
Q

T/F fungi are natural decomposers

A

TRUE. Do not carry out photosynthesis.

22
Q

How do fungi get nutrients?

A

Obtained by absorbing it from surroundings

23
Q

What is unique about fungus?

A

Fungal spores are different than bacterial spores, and are a major way fungi move to new places to grow

24
Q

What is protozoa considered?

A

Eukaryotic. Unicellular microorganism that is motile

25
How do protozoa reproduce?
Asexual or sexual
26
T/F most protozoa are free living
TRUE. Only a few are disease causing
27
How do protozoa move?
Pseudopods, cilia, flagella
28
What is algae?
Photosynthetic eukaryotic organism
29
Are algae unicellular or multicellular?
Both :)
30
31
What environment is algae found in?
Fresh water and salt water
32
How do algae help the environment?
Produce oxygen and essential carbohydrates used by other organisms
33
How do algae get their nutrients?
Photosynthesis yields oxygen and complex carbohydrates
34
T/F multicellular animal parasites are considered microorganisms
FALSE. Not technically microorganisms, but still included because of medical importance
35
What organisms are included in multicellular animal parasites?
Helminths - round worms, flukes, and tapeworms
36
What is a virus?
Incredibly tiny microbes that can only be viewed by electron microscope
37
What are the two classifications of viruses?
Capsid & enveloped
38
What is a capsid virus?
Have DNA or RNA core that is surrounded by highly structured protein coat
39
What is an enveloped virus?
Also have capsid, but are in cased in a lipid membrane usually taken from host cell
40
T/F viruses are a living organism
FALSE. Cannot carry out metabolic reactions. Completely reliant on host cell to reproduce
41
Who devised the system of classification for microbes, and when?
Carl Woese in 1978
42
What is mycology?
Study of fungus
43
What is epidemiology?
Study of disease spread