Past papers 1

Question 1

Exotoxins are produced mainly by:

Answer 1

Gram positive bacteria

Question 2

Endotoxins are produced mainly by:

Answer 2

Gram negative bacteria

Question 3

Endotoxin is of which origin?
And has which effect?

Answer 3

Lipid, and has pyogenic (nonspecific) effect

Question 4

Exotoxins have specific effects to:

Answer 4

Cells and tissues

Question 5

Endotoxin is released after:

Answer 5

Cell death / bacterial lysis

Question 6

Leukocidins have which effect?

Answer 6

decrease the phagocytic activity of leukocytes

Question 7

Coagulases have which effects?

Answer 7

Cause formation of fibrin clumps and protect bacteria from phagocytosis

Question 8

Hyaluronidases have which effect?

Answer 8

Dissolve hyaluronic acid

Question 9

Kinases have which effect?

Answer 9

bind and activate plasminogen

Question 10

Plasmin is produced?

Answer 10

in the blood to break down clot of fibrin

Question 11

Characterize filamentous bacteria:

Answer 11

the higher bacteria
mycelial arrangement

Question 12

Name genera of filamentous bacteria (ANS):

Answer 12

Actinomyces, Nocardia and Streptomyces

Question 13

The main component of bacterial cell wall is:

Answer 13

peptidoglycan which consists from sugars and amino acids

Question 14

Plasma membrane contains:

Answer 14

integrated transport proteins

Question 15

Which bacteria does not have cell wall?

Answer 15

Mycoplasma

Question 16

O antigen are present in:

Answer 16

Gram negative bacteria, in polysaccharide portion of LPS

Question 17

What is pinocytosis?

Answer 17

Cellular drinking, uptake of fat droplets, vitamins and antigens

Question 18

When are transport mechanisms and energy important?

Answer 18

during the group translocation

Question 19

Transporters are of what origin?

Answer 19

protein

Question 20

Potentiated (mediated) diffusion occurs:

Answer 20

without energy consumption