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 scientist... 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
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Answer
The scientist should spread each species of bacteria on a separate agar plate.
Step 2
Add myxopyronin filter discs
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After spreading the bacteria, filter discs containing myxopyronin should be added to the agar plates.
Step 3
Incubate the plates
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The plates should be incubated to allow bacterial growth and the antibiotic to take effect.
Step 4
Measure the zone of inhibition
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Finally, the scientist can measure the diameter of the zone of inhibition around each disc to determine the effectiveness of myxopyronin against each bacterial species.
