AQA GCSE Biology · 8461
Specification 4.1.1.6, 4.5.3.5 · Paper 1, Paper 2
The complete killing or removal of microorganisms from an object or material.
Revise: Aseptic Techniques & CulturingSterilisation is one part of aseptic technique. It kills microorganisms that are already present. Petri dishes and culture media must be sterilised before use; otherwise, existing microorganisms could multiply alongside the organism being studied.
- Revise: Contraception Methods
Surgery that prevents sperm and egg from meeting by blocking the sperm ducts or the oviducts.