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Tutor HuntTest QuestionsBiology QuestionsYear 10 Biology Questions

 

Culturing Microorganisms (biology Only) (GCSE Biology)

The following is a GCSE Biology test covering 'Culturing Microorganisms (biology Only)' from the broader topic Cell Biology. The test is geared towards the AQA exam board style syllabus.
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Below a typical questions that will be covered in this test. You final score will be logged on your account

What is the main purpose of performing serial dilutions before plating a sample?
Which incubation temperature is commonly recommended in school labs to minimise risk while allowing many environmental bacteria to grow?
Which method produces a pure single bacterial colony useful for later experiments?
Which factor on an agar plate would indicate you might be growing a different species rather than a mutant of the same species?
Which of the following is a correct step to obtain a pure culture from a mixed sample?
What does a clear “zone of inhibition” around an antibiotic paper disc on an agar plate indicate?
Why might a lab use selective media when isolating microbes from a mixed environmental sample?
Why is it important to incubate replicated plates or samples when doing an experiment?
Why are anaerobic jars or media used when culturing obligate anaerobes?
Why should students label plates with relevant details (e.g. date, sample, dilution) on the bottom of the plate?
Why are Petri dishes usually incubated upside down (agar side up)?