OCR GCSE Combined Science A · J250
Specification B5 · Biology Paper 1, Biology Paper 2, Chemistry Paper 1, Chemistry Paper 2, Physics Paper 1, Physics Paper 2
Revise: Microbiological TechniquesA microscope can reveal individual cells, while growing microorganisms in a culture can make their effects visible on a much larger scale. For example, bacterial growth on nutrient agar can be used to investigate an antimicrobial substance.