Past papers 1 Flashcards

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1
Q

Exotoxins are produced mainly by:

A

Gram positive bacteria

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2
Q

Endotoxins are produced mainly by:

A

Gram negative bacteria

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3
Q

Endotoxin is of which origin?
And has which effect?

A

Lipid, and has pyogenic (nonspecific) effect

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4
Q

Exotoxins have specific effects to:

A

Cells and tissues

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5
Q

Endotoxin is released after:

A

Cell death / bacterial lysis

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6
Q

Leukocidins have which effect?

A

decrease the phagocytic activity of leukocytes

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7
Q

Coagulases have which effects?

A

Cause formation of fibrin clumps and protect bacteria from phagocytosis

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8
Q

Hyaluronidases have which effect?

A

Dissolve hyaluronic acid

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9
Q

Kinases have which effect?

A

bind and activate plasminogen

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10
Q

Plasmin is produced?

A

in the blood to break down clot of fibrin

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11
Q

Characterize filamentous bacteria:

A

the higher bacteria
mycelial arrangement

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12
Q

Name genera of filamentous bacteria (ANS):

A

Actinomyces, Nocardia and Streptomyces

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13
Q

The main component of bacterial cell wall is:

A

peptidoglycan which consists from sugars and amino acids

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14
Q

Plasma membrane contains:

A

integrated transport proteins

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15
Q

Which bacteria does not have cell wall?

A

Mycoplasma

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16
Q

O antigen are present in:

A

Gram negative bacteria, in polysaccharide portion of LPS

17
Q

What is pinocytosis?

A

Cellular drinking, uptake of fat droplets, vitamins and antigens

18
Q

When are transport mechanisms and energy important?

A

during the group translocation

19
Q

Transporters are of what origin?

A

protein

20
Q

Potentiated (mediated) diffusion occurs:

A

without energy consumption