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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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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?
What is the main role of a plasmid in spreading antibiotic resistance?
Which of the following is an antibiotic resistance mechanism that reduces the intracellular concentration of the drug by pumping it out?
What is a likely fitness consequence for some resistant bacteria when antibiotics are absent?
How are antibiotic resistance traits most commonly inherited by the daughter cells of a bacterial cell that has acquired a resistance mutation?
Which laboratory measurement gives a quantitative way to compare effectiveness of two antibiotics against the same bacterium?
What is one way horizontal gene transfer (HGT) differs from vertical inheritance in bacteria?
What role do biofilms play in antibiotic resistance?
Which human practice most directly increases selection pressure for antibiotic-resistant bacteria?
Why can use of broad-spectrum antibiotics be especially likely to promote antibiotic resistance?