The Human Digestive System (OCR GCSE Biology A, Combined (Gateway Science Suite)): Flashcards
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Practise the cards
15 cards from this deck
Digestive system function
Digestive system function
Breaks down food into smaller, soluble molecules
Hydrochloric acid kills...
Hydrochloric acid kills...
Bacteria in food
Small intestine main function
Small intestine main function
Absorbs soluble molecules into blood
Organ producing bile
Organ producing bile
Liver
How bile helps digest fats
How bile helps digest fats
Emulsifies fats into smaller droplets
Large intestine function
Large intestine function
Absorbs water from undigested food
Enzymes definition
Enzymes definition
Biological catalysts that speed up reactions
Optimum temp for enzymes
Optimum temp for enzymes
37°C
Denatured enzyme meaning
Denatured enzyme meaning
Active site shape changed, can't function
Amylase breaks down...
Amylase breaks down...
Starch into maltose
Proteases convert...
Proteases convert...
Proteins into amino acids
Lipases convert...
Lipases convert...
Lipids into fatty acids and glycerol
Benedict's test positive colour
Benedict's test positive colour
Brick red
Iodine test positive colour
Iodine test positive colour
Blue-black
Bile neutralises...
Bile neutralises...
Stomach acid (hydrochloric acid)