Hopefully these Powerpoint slides will go some way in helping you in your revision.
The large ppt covers:
- classes of food and their functions
- balanced diet
- parts of the digestive system, their digestive enzymes, peristalsis
- absorption and villi structure
- excretion, structure and function of the urinary system
- nephron system and production of urine
- water and salt balance
- dialysis machine
- short quiz
Cheers
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I like the idea of slideshows embedded in webpages. They should do it in schools.
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