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Chapter 2 > Ch2 > Flashcards

Ch2 Flashcards

1
Q

What other synonyms for peptidoglycan?

A

Murien
Mucopeptide

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2
Q

Peptidoglycan allows the cell to withstand high osmotic pressure, true or false?

A

False
low

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3
Q

Endotoxins are actively secreted from

A

Bacteria

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4
Q

The symptoms caused by the endotoxin is different from each other while the severity is the same
True or false?

A

Same / different

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5
Q

Symptoms caused by exotoxins are different
True / false?

A

True

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6
Q

members of the genus Neisseria, have an outer lipooligosaccharide (LOS) containing very few repeating units of sugars.

A

True

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7
Q

What are two distinct areas in cytoplasm?

A

1 amorphous matrix
2 inner

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8
Q

Hat

What is volutin?

A

Reserve of high energy stored in the form of polymerized metaphosphate

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9
Q

Which granules are known as metachromatic granules?

A

Volutin

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10
Q

Metachromatic granules are a characteristic feature of which bacteria?

A

Corynebacterium diphtheriae

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11
Q

Borrelia burgdorferi is:
A bacilli
B Cocci
C Spirochetes
D None of the above

A

C

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12
Q

What disease does Borrelia burgdorferi cause?

A

Lyme disease

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13
Q

Bacterial DNA has no exons True or false

A

False
It has no introns 

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14
Q

Plasmids occur in:
A. Gram-negative bacteria
B. Gram-positive bacteria
C. A+B
D. none of the above

A

C

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15
Q

What are two types of plasmid?

A

Transmissible
Nontransmissible

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16
Q

What is the weight for transmissible plasmids?

A

40-100 million

17
Q

What is the molecular weight for nontransmissible plasmids

A

3-20 million

18
Q

How many copies of transmissible plasmids are presented in one cell?

A

1-3

19
Q

How many copies of nontransmissible plasmids are presented in one cell?

A

10-60

20
Q

Bacteriocins are:
A. Lipid
B. carbohydrate
C. protein

A

C

21
Q

How many different serotype of streptococcus pneumonia?

A

91

22
Q

What is quellung reaction?

A
23
Q

What is chemotaxis?

A

orientation or movement of an organism or cell in relation to chemical agents.

24
Q

What is the subunit of flagella?

A

Is composed of many subunits of a single protein flagellin allegedly

25
Q

How do spirochetes move?

A

By using a flagellum-Like called axial filament

26
Q

Mini rods have flagella but most cocci don’t

A
27
Q

What’s the movement of axial filament called?

A

Undulating

28
Q

Pili is hair like filaments
Flagella is whiplike appendages

A
29
Q

What are the important role of pili in bacteria

A

They mediated attachment of bacteria to specific receptors on the human cell surface

Chapter 2 (1 decks)

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