Digestive System Flashcards
Name 5 nutrients
Fats
Carbohydrates
Protein
Vitamins
Minerals
Fats, source and functions
Butter, oil, fatty meat.
Energy, insulation, protects organs.
Carbohydrates, types, source and function
Sugar
Honey, fruit, sweet.
Energy
Starch
Bread, rice, potatoes
Energy
Fibre
Brown bread, fresh fruit and veg
Prevents constipation
Protein, sorce and function
Lean meat, cheese, fish, nuts, eggs
Growth & repair
Vitamins, 2 examples, source, function
Vitamin C
Citrus fruits
Healthy skin & gums
Vitamin D
Milk, cheese, yoghurt, sunlight
Strong bones
Minerals, 2 examples, sources, functions
Iron
Red meat, green veg
Healthy red blood cells
Calcium
Dairy products
Healthy bones & teeth
Mouth
Food is ingested
Chewed and mixed with saliva
Stomach
Breaks food down into smaller molecules.
Acid and digestive enzymes.
Liver
Produces bile (breaks up fat)
Breaks up toxins
Stores nutrients
Pancreas
Produces digestive enzymes
Large intestine
Absorbs water from undigested food.
Small intestine
Digests food
Absorbs nutrients through wall
Nutrients assimilated (sent to blood stream)
Anus
Faeces removed through egestion
Physical Digestion
Mechanical breaking up of food.
Doesn’t change chemical structure of food molecules.
Occurs in mouth and stomach
Chemical digestion
Enzymes break up food molecules.
Changes chemical structure of food molecules.
Occurs in mouth, stomach and small intestine.
