The plate pictured is from a past student. What is the most likely conclusion? S

ID: 97398 • Letter: T

Question

The plate pictured is from a past student. What is the most likely conclusion?

Select one:

a. The results are a classic example of Staphylococcus resistance.

b. Bacitracin is bactericidal and based on streak pattern, there must be contamination.

c. The colonies are a different color at the edge of the zone than the rest of the lawn.

d. Could be susceptible, but possible extended incubation time allowed bacteriostatic effects to decrease.

e. The bacitracin disk used had no potency.

These pictures are from past students who used the same sample. What is the most likely interpretation of the unknown bacterium results?

Select one:

a. Susceptible

b. Resistant

c. Large clearing

d. Undetermined

e. Streptococcus

The plate pictured is from a past student. What is the primary mistake?

Select one:

a. The bacterial lawn was not large enough.

b. Bacitracin is not effective on this plate.

c. No bacteria were added to the plate.

d. The bacitracin disk is blue.

e. The plate was probably not incubated.

0 10 mm 20, mm

Ans-1- option (a) is correct the results are great resistant to stephlococcus

Ans-2- option (a) is correct. The sample result indicate it is susceptible.

Ans-3- option (c) seems to be correct that bacteria were not added. But it also may be possible that it was not incubated.