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Microbiology - Laboratory > 01. Microscopy, Morphology and Motility of Microorganisms > Flashcards

01. Microscopy, Morphology and Motility of Microorganisms Flashcards

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Biology 101 flashcards
1
Q

Deals with the form of microorganisms and the relationship of different structures to each other; contributes to the identification of microorganisms

A

morphology

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2
Q

Prokaryotes: Domain

A

bacteria and archaea

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3
Q

Do prokaryotes have a nucleus?

A

none

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4
Q

Do prokaryotes have nucleus?

A

none

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5
Q

Describe the chromosomes of prokaryotes.

A

closed and circular

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6
Q

dsDNA that provides genetic
advantages (ex. antibiotic resistance)

A

plasmids

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7
Q

All prokaryotes have plasmids.

A

false

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8
Q

The plasmids of some prokaryotes are separate from their chromosomal DNA. True or False?

A

true

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9
Q

Prokaryotes have nuclei and organelles. True or False?

A

false, they do not have nuclei and organelles.

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10
Q

Main component(s) of a prokaryotic cell wall

A

peptidoglycan

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11
Q

coccus

A

single spherical b.

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12
Q

streptococci

A

chain of spherical b.

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13
Q

staphylococci

A

grape-like clusters of spherical b.

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14
Q

diplococci

A

paired spherical b.

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15
Q

diplococci encapsulated

A

paired encapsulated spherical b.

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16
Q

tetrad

A

four spherical b.

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17
Q

sarcina

A

eight spherical b. with three planes of division

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18
Q

cocobacillus

A

oblong-shaped b.

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19
Q

bacillus

A

rod-shaped b.

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20
Q

diplobacilli

A

paired rod-shaped b.

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21
Q

streptobacilli

A

chain of rod-shaped b.

22
Q

palisade

A

rod-shaped b. lines side-by-side

23
Q

domain: eukaryotes

A

eukarya

24
Q

eukaryotic microorganisms

A

protists (protozoa, algae)
fungi

25
Q

Eukaryotes have membrane-bound cytoplasmic organelles and nucleus. True or False?

A

true

26
Q

Describe the DNA of eukaryotic bacteria.

A

linear; inside the nucleus

27
Q

Main component(s) of eukaryotic cell wall

A

cellulose
chitin

28
Q

Animal-like protists

A

protozoa

29
Q

Protozoa: Unicellular or Multicellular?

A

unicellular

30
Q

Do Protozoans have cell wall?

A

none

31
Q

Structures that provide motility in Protozoans like Amoeba, Paramecia and Entamoeba

A

pseudopod
cilia

32
Q

Plant-like protists

A

algae

33
Q

Algae: Unicellular or Multicellular?

A

both

34
Q

Algae are aquatic photosynthetic protists that have diverse morphology: filamentous, siphonous, colonial (e.g., Volvox, Euglena). True or False?

A

true

35
Q

Yeast (fungus) e.g., Saccharomyces cerevisiae, Candida : Unicellular or Multicellular?

A

unicellular

36
Q

Molds and Mushrooms (fungi) : Unicellular or Multicellular?

A

multicellular

37
Q

Multicellular fungi like molds and mushrooms have vegetative and reproductive structures. True or False?

A

true

38
Q

Multicellular fungi (molds and mushrooms) e.g., Rhizopus stolonifera, Coryceps: Cell wall component

A

chitin

39
Q

Sac or capsule that produces spores for
reproduction in mushrooms

A

sporangium

40
Q

Long filamentous, thread-like structure in mushrooms

A

hyphae

41
Q

Mass of hyphae (mushrooms)

A

mycelium

42
Q

Structure that connects sporangiophores together in mushrooms

A

stolon

43
Q

Do molds have hyphae?

A

yes.

44
Q

Two types of hyphae

A

septate, aseptate

45
Q

Septate hyphae vs. Aseptate hyphae

A

with crosswalk vs no crosswall

46
Q

Erratic and random movement of microorganisms caused by collisions with molecules in a liquid

A

brownian movement

47
Q

Independent movement brought about by organs of locomotion or gliding; Directional and purposeful movement

A

true movement

48
Q

Bacterial Motility : Whip-like filamentous protein structures (helical and rigid)

A

flagella (zooflagellates)

49
Q

Bacterial Motility : Lashing, flexion extension motility

A

corkscrew motion

50
Q

Bacterial Motility : Translocation without external appendages

A

gliding motility

51
Q

Hair-like appendages

A

cilia (ciliates)

52
Q

Structure in bacteria for anchoring and pulling

A

pseudopods (sarcodines)

Microbiology - Laboratory (2 decks)

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