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digestion (Absorption (small intestine (Villi (increased SA (increased…
digestion
Absorption
small intestine
Villi
increased SA
increased absorption of nutrients
water
sugars
minerals
diffusion
into bloodstream
jejunum
main site of reabsorption
Bile
Breakdown fats
stored in cells
active transport
large intestine
colon
salts
absorbed into bloodstream
vitamins
water
Elimination
anus
Peristalsis
liver process absorbed materials
produces bile and lolirubin
breakdown herme
balances concentrations
detoxified wastes / blood
large intestine
rectum
peristalsis
faeces
anus
Chemical
Digestive enzymes
stomach
pepsinogen
pepsin
HCI
Performs best in acid
Gastric juices
bolus = chyme
Saliva
Amylase
react with food
increased surface area
pancreatic juices
small juices
Breakdown organic molecules
carbs
sugars
proteins
triggered by hormone
released by duodenum
Physical
Mechanical
Teeth
Caniner
flesh
Molar
premolars
Crush + grind plant matter
Incisor
tear plants
Stomach
Contract and relax
increased SA of Bolus
increase SA food
oesophagus
Peristalsis
Delivers bolus to stomach
Saliva
Amylase