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8.1 The digestive system (gut) (alimentary canal) - Coggle Diagram
8.1 The digestive system (gut) (alimentary canal)
explanation
*breakdown of large insoluble molecules into smaller soluble molecules
starch --> glucose
protein --> amino acids
fat --> fatty acids & glycerol
mouth ---> rectum
digestion
mechanical digestion
break solid food ---> smaller pieces
chemical digestion
break large molecules ---> smaller one
enzyme
mouth
M.D
teeth
incisor: biting & cutting
canine: holding & tearing
premolar & molar: crushing & grinding
C.D.
saliva (enzyme)
salivary amylase : starch -> glucose
make food slippery
easy to swallow
peristalsis (squeezing action)
stomach
mix with HCl & enzyme (protease) : protein -> amino acids
smooth paste
small intestine
food molecules --> small molecule
absorb into bloodstream
pancreas , liver , gall bladder
large intestine
undigested food : fibre & bacteria
absorb water into bloodstream
fibre + bacteria = faeces
rectum : store faeces
anus: faeces out from body