Results of the testing microbial growth practical

Question 1

Overnight the antibiotics will

The antibiotic is most concentrated where the paper disk is

Answer 1

diffuse outwards from each paper disk so that a gradient of antibiotic forms

located

Question 2

If the bacteria being investigated is vulnerable to an antibiotic then a

Answer 2

clear area will be visible around the disc
There are no bacteria present in the clear area

Question 3

The clear area will end when the concentration of antibiotic reaches a level that the bacteria are…….

Answer 3

no longer susceptible to

Question 4

More effective antibiotics require a lower concentration to

so they will produce…..

Answer 4

kill bacteria and so they will produce larger clear zones

Question 5

If a bacteria is completely resistant to an antibiotic then there will be

Answer 5

no clear zone around that particular paper disk

Question 6

The minimum inhibitory concentration (MIC)

When antibiotics are used to treat bacterial infections, the dosage used is carefully controlled
The minimum inhibitory concentration (MIC) is the

Answer 6

lowest concentration of a substance that will inhibit the growth of a microorganism

Question 7

is expected that you will be able to suggest aseptic techniques that should be used for specific experiments. Make sure to learn a few of the ones above so that you can get those marks!