Biology A-Level
Model cells
What Model cells means in Biology A-Level, as defined for OCR.
Definition of Model cells
Check what you remember
Read the wording for your board, then hide it and explain Model cells in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Cubes of agar jelly containing a pH indicator such as phenolphthalein, set with dilute alkali so the jelly is pink, used to measure diffusion without living tissue.
Topics that use Model cells
- Biological membranes (OCR A-Level)
Related terms
- Cell signalling and receptors
- Cholesterol
- Cholesterol and fatty-acid saturation
- Compartmentalisation within cells
- Control variables
- Fluid mosaic model
- glycoproteins and glycolipids
- Lysis and crenation in animal cells
Using Model cells in the exam
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