Microbiology

Question 1

Aim

Answer 1

Investigate the effect of different antiseptic or antibiotics on bacterial growth

Question 2

Step one

Answer 2

Sterilise equipment and working space

Question 3

Step two

Answer 3

Place the different antiseptic onto different filter discs

Question 4

Step three

Answer 4

Lift the lid on the agar plate at an angle and place filter paper disc on the dots

Question 5

Step four

Answer 5

Place that agar plate in incubator at 25°C for 48 hours

Question 6

Step five

Answer 6

Measure the diameter of the clear zones after 48 hours using a ruler

Question 7

Step six

Answer 7

Calculate area of the clear zones using the formula ( pi x r^2 ) and place results in a table