CAIE IGCSE Biology 16.4.5 Adaptive features of egg cells
CAIE IGCSE Biology 16.4.5 Adaptive features of egg cells
Practise explaining egg-cell adaptations, including the jelly coat after fertilisation and stored food used during early development.
How this is tested
- explain how the jelly coat changes to prevent more than one sperm entering the egg
- link protein and fat stores in the egg to energy, membranes and new cells after fertilisation
- label an egg-cell drawing with a feature not found in sperm,