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Microbiology > Chapter 11 - Prokaryotes > Flashcards

Chapter 11 - Prokaryotes Flashcards

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Biology 101 flashcards
1
Q

What are the 4 functions of bacterial cell walls

A

Shape
Protection from osmotic forces
Attachment
Target of antimicrobial drugs

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2
Q

What are the 4 categories of bacteria

A

Gram +
Gram -
Mycobacteria
Mycoplasma

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3
Q

Is the layer of peptidoglycan of gram (+) thick or thin

A

Thick

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4
Q

What color does the cell wall of gram (+) bacteria appear

A

Purple following Gram stain

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5
Q

Is the layer of peptidoglycan of gram (-) bacteria thick or thin

A

Thin

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6
Q

What lipopolysaccharide is contained in the membrane of Gram (-) bacteria

A

Lipid A

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7
Q

What color does a gram (-) bacteria appear

A

Appears Magenta following Gram stain

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8
Q

What category of bacteria contains a distinctive “fried egg” appearance

A

Mycoplasma

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9
Q

What category of bacteria contains waxy, mycolic acid

A

Acid-fast bacteria

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10
Q

Does Mycoplasma have a cell wall

A

NO

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11
Q

What category of bacteria colonized osmotically protected habitats

A

No cell wall bacteria (Mycoplasma)

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12
Q

What category of bacteria has a cell wall

A

Acid fast bacteria (mycobacterium)

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13
Q

What group does staphylococcus belong to and how does it appear

A

Cocci in clusters

Boils, skin infections

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14
Q

What group of Gram (+) bacteria does streptococcus belong to and how does it appear

A

Cocci in pairs and chains

Strep throat, dental caries

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15
Q

What group of Gram (+) bacteria do bacillus (anthrax) and clostridium belong

A

(Endo)spore-forming rods

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16
Q

What group of Gram (-) bacteria does Neisseria belong to and what are examples of it

A

Aerobic cocci

Gonorrhea; meningitis

17
Q

What group of Gram (-) negative bacteria do Moraxella and Acinetobacter belong

A

Aerobic coccobacilli

18
Q

What group of Gram (-) bacteria do the following belong:
Brucellosis
Bordetella
Francisella

A

Miscellaneous rods

19
Q

TQ: what group of gram (-) bacteria does Pseudomonas belong and how do they present

A

Aerobic rods

Pneumonia, burn infections

20
Q

What are 3 examples of the group Facultative or anaerobic rods and vibrios in the gram (-) category of bacteria

A

Proteus (UTIs)
Vibrio (cholera)
Haemophilus (meningitis, pink eye)

21
Q

What is the the bacteria bacteroid in the anaerobic rods group of gram (-) bacteria

A

Appendicitis

22
Q

What conditions are the acid-fast bacteria “mycobacterium” associated with (2)

A

Tuberculosis

Leprosy

23
Q

What pathological condition is bacteria with no cell wall “mycoplasma” associated with

A

Pneumonia

24
Q

T/F all prokaryotic cells reproduce asexually

A

True

25
Q

What are the 3 main methods of asexual reproduction

A

Binary fission
Snapping division
Budding

26
Q

What is the most common way prokaryotic cells reproduce asexually

A

Binary fission

27
Q

T/F snapping division is a variation of budding

A

False: snapping division is a variation of BINARY FISSION

Microbiology (6 decks)

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