Which of the following antibiotics inhibits folic acid synthesis in bacteria?

In the Kirby Bauer disc diffusion test the ________ of the zone of inhibition is measured and used for interpretation.

The turbidity standard used in the Kirby Bauer test:

Who discovered antibiotics?

The zone of the diameter is measured in millimeters (mm).

When setting up a Kirby Bauer test placed how many directions on the plate should the swab containing the bacteria be streaked across the surface of the plate?

If a bacterium is resistant to an antibiotic that drug will be effective in treating that infection.

Growth all the way up to the edge of the disc would be interpreted as:

Beta-lactamase enzymes destroy the beta-lactam ring of penicillin antibiotics rendering them inactive.

Beta-lactamase enzymes are most commonly produced by: