Flashcards in The Digestive System Deck (20):
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What is the function of the digestive system?
Food is broken down into tiny particles
Waste is excreted
Nutrients are past in the blood
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Types of breakdown
Physical change/breakdown
Chemical change/breakdown
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Physical change
Teeth grinds foods
Stomach churns food into chyme
3
Chemical changes
Digestive enzymes breakdown macronutrients
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Protein
Amino acids
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Fat
Fatty acids and glycerol
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Carbohydrates
Glucose, simple sugars
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Mouth, sailva
Cut grinds foods
Salivary amalayse carbs ---> maltose
8
Oesophagus
Pushes food in stomach peristalsis
9
Stomach
Turns food into chyme produces enzyme, acid in stomach helps pepsin breaks down protein
10
Liver
In gall bladder produces bile to break down fat
11
Pancreas
Produces enzymes
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Small intestine
Causes chemical changes
Absorbs nutrients in the blood vessels
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Absorption
Movement of digested food from the small intestine into the blood
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Villi
Tiny hair like fingers, digested food through villi into blood vessel
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Glucose and amino acids
Goes into blood
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Fatty acids and glycerol
Lymph system then into blood
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Blood vessels
Puts digested into cells
18
Large intestine
Faeces is pushed out of rectum by peristalsis
19