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Tutor HuntTest QuestionsBiology QuestionsYear 10 Biology Questions

 

Resistant Bacteria (GCSE Biology)

The following is a GCSE Biology test covering 'Resistant Bacteria' from the broader topic Inheritance, Variation And Evolution. The test is geared towards the AQA exam board style syllabus.
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Which bacterial mechanism confers resistance by producing an enzyme that breaks down penicillins?
How does natural selection lead to antibiotic-resistant bacteria becoming common in a population?
Which laboratory measurement gives a quantitative way to compare effectiveness of two antibiotics against the same bacterium?
Which bacterial process can package DNA into a bacteriophage and thereby transfer resistance genes between bacteria?
What is a likely fitness consequence for some resistant bacteria when antibiotics are absent?
How can a short, circular DNA molecule (plasmid) increase the speed at which multiple resistance genes spread through bacterial populations?
What is the best description of “selection pressure” in the context of antibiotic use?
Which process produces new genetic variants in a bacterial population that can lead to antibiotic resistance?
Why might incomplete or inappropriate use of antibiotics contribute to resistance?
What is the main role of a plasmid in spreading antibiotic resistance?
Which human practice most directly increases selection pressure for antibiotic-resistant bacteria?