Biology A-Level
specimen preparation
What specimen preparation means in Biology A-Level, as defined for AQA.
Definition of specimen preparation
Check what you remember
Read the wording for your board, then hide it and explain specimen preparation in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Killing, fixing, dehydrating, embedding, sectioning and staining tissue for microscopy, where every step can add something that was never there or destroy something that was.
Topics that use specimen preparation
- Methods of studying cells (AQA A-Level)
Related terms
- acceptance of scientific evidence
- artefact
- calibration
- magnification
- microscopy limitations
- optical vs electron microscopes
- resolution
- TEM and SEM principles
Using specimen preparation in the exam
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