Unit 3.4

Question 1

This is the enzyme that normally coils bacterial DNA to allow the bacteria to replicate.

Answer 1

DNA gyrase

Question 2

Which antimicrobial family works by disrupting DNA-gyrase?

Answer 2

quinolones

Question 3

Which antimicrobials are contraindicated for use in rapidly growing dogs because of the risk for cartilage malformation?

Answer 3

quinolones

Question 4

Which quinolone has caused blindness in cats when used at higher doses?

Answer 4

enrofolxacin

Question 5

T or F

Quinolones are mostly banned from use in food animals

Answer 5

False

Question 6

T or F
The antibiotic group that works by inhibiting DNA gyrase enzyme and preventing coiling of bacterial DNA for duplication is the fluoroquinolones.

Answer 6

True

Question 7

What is the site of action for the following drug?

Penicillins

Answer 7

cell wall

Question 8

What is the site of action for the following drug?

Cephalosporins

Answer 8

cell wall

Question 9

What is the site of action for the following drug?

Aminoglycosides

Answer 9

ribosomal production

Question 10

What is the site of action for the following drug?

Quinolones

Answer 10

key enzyme