digestive system

by (1980)
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Samenvatting - digestive system

  • 1 Food and nutrients

  • What is food?
    any substance that can be eaten or drunk by animals or humans.
  • Where can food come from?
    plants or animals
  • What are plant-derived foods?
    roots, stems, leaves, fruit and seeds of certain plants
  • What kind of source of food can animals be?
    directly and indirectly 
  • Give examples of direct products they provide?
    Meat is an example of a direct product taken from an animal often bred for this purpose.
  • What are indirect products?
    products that an animal produce, eggs and milk
  • What are dairy products?
    foodstuffs produced from milk, like butter, cheese and yogurt 
  • What can you do with a tally chart?
    write down everything you drink and eat on ordinary school day
  • 1.1 nutrients

  • What are nutrients?
    the chemical substances that are present in the food we eat every day, the useful parts of food.
  • Why does our body need these nutrients?
    in order to perform properly
  • What do many foods from plants contain as well?
    dietary fibre
  • What is dietary fibre?
    the collective name for the indigestible parts of plants
  • What are the different functions for nutrients in our body?
      – Building blocks: for forming cells and tissues (especially for growth, development and repair of the body).
    – Fuels: provide energy for moving, maintaining body temperature and for growth, development and repair.
    – For storage: are stored in certain parts of the body.
    – For protection: keep you healthy.
  • Which six types of nutrients does food consist of?
    proteins, carbohydrates, fats, water, minerals (salts), and vitamins.
  • How are proteins used?
    - are essential for growth and repair, used as building blocks, e.g. to produce cytoplasm your body needs lots of protein.
    - proteins that are not used as building blocks are used as fuel for respiration 
  • Can proteins be stored?
  • What is among carbohydrates?
    glucose, types of sugars and starch
  • Where are carbohydrates used for?
    they provide fuel but may also be used for growth or for storage
  • Does food from animals usually contains small or large amounts of carbohydrates?
  • Where do fats serve for?
    as fuel in our body, but may also be used for growth and for storage
  • What happens when you eat more fat than is needed?
    it is stored, mostly beneath your skin
  • How many percent of your body weight does water make up?
  • What are the functions of water?
    lays important role in transporting substances through your body, most substances can only be transported when dissolved in water
  • How are minerals also known?
    as salts
  • What are the functions of minerals?
    growth and repair: calcium for strong bones
  • Are minerals daily needed small or large amounts?
    very small smounts
  • What are the functions of vitamins?
    growth and repair
  • What are they fat-soluble vitamins and what happens when you excess them?
    (A, D, E and K) may cause problems
  • What are essential vitamins?
    A, B, C, D and K
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Voorbeelden van vragen in deze samenvatting

What is food?
Where can food come from?
What are plant-derived foods?
What kind of source of food can animals be?
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