A scientist was planning to compare the effectiveness of the antibiotic myxopyronin on two different species of bacteria - Edexcel - GCSE Biology - Question 10 - 2018 - Paper 1
Question 10
A scientist was planning to compare the effectiveness of the antibiotic myxopyronin on two different species of bacteria.
Figure 18 shows the equipment the scientis... show full transcript
Worked Solution & Example Answer:A scientist was planning to compare the effectiveness of the antibiotic myxopyronin on two different species of bacteria - Edexcel - GCSE Biology - Question 10 - 2018 - Paper 1
Step 1
Spread each bacterial species
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The scientist should take each bacterial species and spread them on separate agar plates to ensure even distribution.
Step 2
Add filter discs with myxopyronin
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Next, filter discs containing myxopyronin should be placed on each of the agar plates with the bacteria.
Step 3
Incubate the plates
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
The plates should then be incubated at an appropriate temperature for bacteria to grow.
Step 4
Measure the zone of inhibition
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
After incubation, the scientist can measure the zone of inhibition around each disc to determine the effectiveness of myxopyronin on each bacterial species.
