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MICROBIO > BACTERIAL MORPHOLOGY > Flashcards

BACTERIAL MORPHOLOGY Flashcards

1
Q

under cocci there are:

A

streptococci, diplococci, tetrad, staphylococci, sarcina

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2
Q

under rods there are:

A

chain of bacilli, flgellate rods, spore-former

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3
Q

under spirals there are:

A

vibrios, spirilla, spirochaetes

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4
Q

SHAPE OF COCCIE BACILLUS AND SPIRAL

A

COCCI: Spherical/round
BACCILUS: Rod-shaped, short, elongated cocci
SPIRAL: Curved, spiral, club shaped, comma shaped

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5
Q

ARRANGEMENT OF COCCI

A

SINGLY, PAIRS, CHAINS, CLUSTERS, GROUPS

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6
Q

EXAMPLES OF COCCI, BACILLUS, AND SPIRAL

A

COCCI:Staphylocuccus, Streptococcus

BACILLUS:Escherichia Coli Salmonella typhosa; coccobacilli (H. influenza)

SPIRAL:Vibrio cholera Treponema pallidum Corynebacteriu m diphtheriae

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7
Q

` is a carbohydrate-enriched coating that covers the outside of many bacteria ` a factor used for the recognition of the cell. provides a protective coat from host factors.

A

GLYCOCALYX

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8
Q

‰structural layer just outside thecellmembrane. ‰tough, flexible, rigid. ‰provides both structural support and protection ‰acts as a filtering mechanism.

A

CELL WALL

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9
Q

Ń Major components of Gram (+) antigen Ń Elicits antibody response. S. aureus Ń Attachment of organism to the host cell Ń Tensile strength to Gram (+) cell wall

A

TEICHOIC ACIDS

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10
Q

includes neutral sugars (mannose, arabinose) acidic sugars (glucuronic, mannuronic acid)

A

POLYSACHARRIDES

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11
Q

Ń helically shaped structures containing the protein flagellin. Ń rotates in a clockwise or counterclockwise direction, in a motion similar to that of a propeller.

A

FLAGELLA

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12
Q

referred to as an attachment pilus

appendage that can be found on many gram-negative and some gram-positive bacteria

thinner and shorter than a flagellum

A

Pili or Fimbriae

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13
Q

are distinguished from other bacteria by the location of their flagella

E.gTreponema pallidum causing syphilis

A

Spirochaetes

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14
Q

also called endoflagella

It permits twisting motion allowing the spirochaeteto move about

A

Axial filaments

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15
Q

functions to anchor the outer membrane to the peptidoglycan layer and stabilizes the outer membrane

A

lipoprotein

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16
Q

a fluid filled space between the outer membrane and the inner plasma membrane. it contains enzymes for the breakdown of large non-transportable molecules into transportable ones and enzymes that serve to detoxify and inactive antibiotics

A

periplasmic space

17
Q

they are found in certain bacteria and serve for storage of food and energy

A

granules or inclusion bodies

MICROBIO (7 decks)

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