CAIE IGCSE Biology EXTENDED 7.3.7 Bile & fat emulsification
CAIE IGCSE Biology EXTENDED 7.3.7 Bile & fat emulsification
Practise explaining how bile helps fat digestion by emulsifying lipids, increasing surface area and neutralising acidic chyme.
How this is tested
- explain how bile emulsifies fat into smaller droplets with greater surface area
- link bile to faster lipase action and digestion to fatty acids and glycerol
- distinguish bile's roles from enzymes, including neutralising stomach acid