Introduction to Bacteria Flashcards

1
Q

What does the membrane of gram-positive bacteria contain?

A

Plasma membrane
Periplasmic space
Peptidoglycan

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2
Q

What does the membrane of gram-negative bacteria contain?

A
Plasma membrane
Periplasmic space
Peptidoglycan
Periplasmic space
Outer membrane (liposaccharide and protein)
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3
Q

What colour do gram-postive/negative bacteria turn during gram staining?

A

Positive - Purple

Negative - Red

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4
Q

What shape are cocci bacteria?

A

Spherical

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5
Q

What shape are bacilli bacteria?

A

Rod

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6
Q

What 3 substances do penicillin binding proteins cross link with?

A

Transpeptidases
Carboxypeptidases
Endopeptidases

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7
Q

What is the function of the peptidoglycan?

A

Strength and shape.

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8
Q

What do capsules protect bacteria from?

A

Engulfment by macrophages.

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9
Q

What is the function of the flagellum?

A

Motility

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10
Q

What is the name of one singular flagellum?

A

Monotrichous Vibrio Cholerae

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11
Q

What is the name of multiple flagellum coming from the same site of the bacteria?

A

Lophotrichous Spirillum Spp.

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12
Q

What is the name of one flagellum coming out of either side of the bacteria?

A

Amphitrichous Rhodospirillum Rubrum

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13
Q

What is the name of multiple flagellum all over the bacteria?

A

Peritrichous.

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14
Q

What is the function of fimbriae?

A

Adherence.

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15
Q

How do bacteria replicate?

A

Binary fission.

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16
Q

How do bacteria genetically variate?

A

Spontaneous mutation

Transfer of DNA

17
Q

How do we see individual bacteria?

A

Microscopy

18
Q

How can we see colonies of individual bacteria?

A

Cultures on solid medium (agar).

19
Q

Name 3 genuses.

A

Staphylococcus
Streptococcus
Acinetobacter

20
Q

Name 6 species.

A
Aureus
Pyogenes
Epidermidis
Pneumoniae
Baumannii
Nosocomialis