Biology GCSE
disc diffusion antimicrobial assay
What disc diffusion antimicrobial assay means in Biology GCSE, as defined for OCR.
Definition of disc diffusion antimicrobial assay
Check what you remember
Read the wording for your board, then hide it and explain disc diffusion antimicrobial assay in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
A method in which filter paper discs impregnated with known concentrations of test substances are placed onto a sterile bacterial lawn on nutrient agar to evaluate efficacy against bacteria.
Topics that use disc diffusion antimicrobial assay
- Microbiological techniques (OCR GCSE)
Related terms
- convection current
- differential staining and contrast
- high-power microscopic resolution
- mass, gas volume and pH measurement
- microbial smear preparation and heat-fixing
- microbiological scientific drawing
- negative control verification
- safe zone measurement through closed dish
Using disc diffusion antimicrobial assay in the exam
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