A test bacterium was swabbed over the entire surface of a Mueller-Hinton agar plate and incubated with antibiotic disks as follows:

A: Ampicillin

B: Penicillin G

C: Bacitracin

D: Erythromycin

E: Tetracycline

Which of the antibiotics tested is this bacterium susceptible to? (Select all that apply.  Hint, refer to Table 43.1 in your lab manual.) (2marks)

On a Kirby-Bauer plate, antibiotic susceptibility patterns are called .

The lowest concentration of a drug that will prevent the growth of a particular microorganism is called the (3 words).

After incubation of a bacterial lawn on a Mueller-Hinton agar plate, the (3 words) is the area around antibiotic paper disks that reflect the sensitivity of a bacterium to the antibiotic.

The (2 words) method is a disk diffusion test to determine the susceptibility of a microorganism to antimicrobial agents.

Kirby-Bauer is only limited to testing sensitivity of a microorganism to an antibiotic.

An oxidase test was performed on bacteria A and bacteria B in the image.  Which of the following statements are correct? (select all that apply)

A catalase test was performed on bacteria A and bacteria B in the image.  Which of the following statements are correct? (select all that apply)

Catalase is an enzyme that helps anaerobic bacteria get rid of toxic oxidizing agents such as O₂^-, H₂O₂ and OH^-. 

Bacteria having both aerobic respiratory and fermentative types of metabolisms will be oxidase negative.