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

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

25
Eukaryotic cell ribosomes
Larger, 80S On endoplasmic reticulum
26
Eukaryotic cell membrane enclosed organelles
Present Mitochondria, chloroplasts, Golgi complexes, lysosomes & endoplasmic reticulum
27
Eukaryotic cell plasma membranes
Sterols present
28
Eukaryotic cell site of respiration
Mitochondria
29
Eukaryotic cell site of photosynthesis
Chloroplasts
30
Eukaryotic cell locomotion
Flagella and cilia that undulate Amoeboid movements
31
Bacteria cellular organelles
Absent
32
Bacteria ribosomes
70S
33
Bacteria: AA carried by initiator tRNA
Formylmethanionine
34
Archaea ribosomes
70S
35
Archaea: AA carried by initiator tRNA
Methionine
36
Archaea cellular organelle
Absent
37
Eukaryotes: AA carried by initiator tRNA
Methionine
38
Fungi
Distribution: terrestrial, pathogenic, symbiotic Nutrition: heterotrophic saphrophyte Structure: vegetative thallus, chitin cell wall
39
Slime molds
Distribution: terrestrial/aquatic environments Nutrition: heterotrophic saphrophyte Structure: acellular/cellular- spores with cellulose cell walls. Water molds- hyphae with cellulose cell walls
40
Virus
Distribution: obligate intracellular parasite of living cells Structure: nucleocapsid core (DNA or RNA surrounded by protein capsid)
41
Protozoa
Distribution: aquatic/terrestrial, animal pathogens Nutrition: chemoheterotrophic Structure: motile (pseudopodia), unicellular. Variable