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Food and Digestion
Descripción
This is a year 8 biology summary topic mind map on: Food and Digestion.
Sin etiquetas
year8
biology
foodanddigestion
science and maths
biology
ks3
Mapa Mental por
lillycherriman
, actualizado hace más de 1 año
Más
Menos
Creado por
lillycherriman
hace alrededor de 9 años
97
3
0
Resumen del Recurso
Food and Digestion
Balanced Diet
To stay healthy we need a balanced diet.
The amount of each food group that we need depends on our age, our size, our sex and how active we are.
Food Groups
Nutrients
Proteins for growth
E.g. meat, fish
Carbohydrates for energy
Sugars
E.g. fruit, sweets
Starch
E.g. bread, potatoes
Fats for energy
E.g. butter, cooking oil
Vitamins
E.g. fruit, vegetables, cereals, milk, eggs.
Minerals
E.g. milk (calcium), liver (iron).
Water
All food and drinks.
Fibre
E.g. cereals, vegetables.
In Our Digestive Systems
Our cells use food for energy for moving, growing and keeping warm. And for materials to grow and to repair themselves.
Large molecules of proteins, carbohydrates and fats get digested by enzymes.
Small molecules of amino acids, sugars, fatty acids and glycerol get absorbed into the bloodstream, and then into the cells.
We do not digest fibre. It passes out of our bodies in the faeces.
We absorb small molecules such as vitamins, minerals and water without digestion.
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