digestive system Flashcards
large insoluble molecules - 3
starch, protein, fats
small soluble molecules - 4
sugars, amino acids, glycerol, fatty acids
amylase
turns starch to maltose
maltase
turns maltose into glucose
proteases
turns proteins into amino acids
lipases
turns lipids into fatty acids and glycerol
where is bile produced
liver
where is bile stored
gall bladder
where is bile released to
small intestine
is bile acidic or alkaline
alkaline - for enzymes in intestines
what does bile do - 2
neutralises stomach acid and emulsifies fats
why is fat emulsified
for larger surface area for faster work of lipase to turn fat into glycerol + fatty acids
peristalsis
muscular tissue down alimentary canal squeezes food through your gut in circular muscle contractions
digestion in mouth - 2
mechanical
-teeth break down food
-salivary glands produce amylase enzyme in saliva
oesophagus role
muscular tube that connects mouth and stomach