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MICR2208 > Lec 2: Introduction to taxonomy of microorganisms > Flashcards

Lec 2: Introduction to taxonomy of microorganisms Flashcards

1
Q

Bacteria cell wall

A

Contains muramic acid

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2
Q

Bacteria membrane lipids

A

Ester-linked straight hydrocarbon chains

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3
Q

Bacteria membrane-bound nucleus

A

Absent

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4
Q

Bacteria chromosome

A

Single circular

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5
Q

Archae cell wall

A

Lacks muramic acid

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6
Q

Archaea membrane lipids

A

Ether-linked branched aliphatic hydrocarbon chains

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7
Q

Archaea chromosomes

A

Single circular

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8
Q

Eukaryotes cell wall

A

Lacks muramic acid & peptidoglycan

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9
Q

Eukaryotes membrane lipids

A

Ester-linked straight hydrocarbon chains

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10
Q

Eukaryotes membrane bound nucleus

A

Present

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11
Q

Eukaryotes chromosome

A

Linear

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12
Q

Size of prokaryotes

A

Usually smaller

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13
Q

Prokaryotic cell wall

A

Contains peptidoglycan

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14
Q

Prokaryotic cell genetic material

A

Circular DNA molecule

No discrete nucleus

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15
Q

Prokaryotic mitosis & meiosis

A

Absent

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16
Q

Prokaryotic cell ribosomes

A

Smaller than eukaryotes, 70S

Free in cytoplasm

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17
Q

Prokaryotic cell: membrane-enclosed organelles

A

Absent

18
Q

Prokaryotic cell plasma membrane

A

Sterols present

19
Q

Prokaryotic cell site of respiration

A

Plasma membrane

20
Q

Prokaryotic cell site of photosynthesis

A

Internal membranes

21
Q

Prokaryotic cell locomotion

A

Flagella that rotate. Some glide

22
Q

Eukaryotic cell size

A

Usually larger

23
Q

Eukaryotic cell genetic material

A

Arranged in chromosomes

Nucleus present

24
Q

Eukaryotic cell mitosis & meiosis

A

Present

25
Q

Eukaryotic cell ribosomes

A

Larger, 80S

On endoplasmic reticulum

26
Q

Eukaryotic cell membrane enclosed organelles

A

Present

Mitochondria, chloroplasts, Golgi complexes, lysosomes & endoplasmic reticulum

27
Q

Eukaryotic cell plasma membranes

A

Sterols present

28
Q

Eukaryotic cell site of respiration

A

Mitochondria

29
Q

Eukaryotic cell site of photosynthesis

A

Chloroplasts

30
Q

Eukaryotic cell locomotion

A

Flagella and cilia that undulate

Amoeboid movements

31
Q

Bacteria cellular organelles

A

Absent

32
Q

Bacteria ribosomes

A

70S

33
Q

Bacteria: AA carried by initiator tRNA

A

Formylmethanionine

34
Q

Archaea ribosomes

A

70S

35
Q

Archaea: AA carried by initiator tRNA

A

Methionine

36
Q

Archaea cellular organelle

A

Absent

37
Q

Eukaryotes: AA carried by initiator tRNA

A

Methionine

38
Q

Fungi

A

Distribution: terrestrial, pathogenic, symbiotic

Nutrition: heterotrophic saphrophyte

Structure: vegetative thallus, chitin cell wall

39
Q

Slime molds

A

Distribution: terrestrial/aquatic environments

Nutrition: heterotrophic saphrophyte

Structure: acellular/cellular- spores with cellulose cell walls. Water molds- hyphae with cellulose cell walls

40
Q

Virus

A

Distribution: obligate intracellular parasite of living cells

Structure: nucleocapsid core (DNA or RNA surrounded by protein capsid)

41
Q

Protozoa

A

Distribution: aquatic/terrestrial, animal pathogens

Nutrition: chemoheterotrophic

Structure: motile (pseudopodia), unicellular. Variable

MICR2208 (13 decks)

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