Study

Digestive System

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  • The nutrients that provide stored energy and help insulate the body are called ___________.
    fats
  • Bile is made in the....
    liver
  • what is one of the jobs that saliva has in digestion?
    It makes the solid food to be bolus/ breaks down food for digestion
  • What is the colour changing as positive result of protein test?
    Turn to purple/ Violet
  • What are the squeezing movements made by the esophagus muscles as food moves to the stomach?
    Peristalsis
  • Nutrients from food are absorbed into the blood as chyme passes through the _________.
    small intestine
  • Mention two types of digestion
    Physical/ Mechanical digestion and Chemical digestion
  • food substances that act as the main source of energy.
    carbohydrates
  • What reagent/chemical used for fat/lipid test?
    Ethanol
  • What kind of food test that needs to be burnt/boiled to show the changing colour as the result?
    Reducing sugar test using benedict
  • Name 5 organs that make up the alimentary canal.
    Mouth, pharynx, esophagus, stomach, small intestine, large intestine, and anus.
  • What reagent/chemical used for reducing sugar test?
    Benedict
  • What is the colour changing as positive result of reducing sugar test?
    Turn to orange/ brick red
  • What reagent/chemical used for protein test?
    Biuret
  • Food substances that enable the body to grow and repair its tissues.
    proteins
  • In the small intestine __ __________ can pass into the bloodstream.
    the nutrients
  • What tube moves food from the end of the mouth (pharynx) to STOMACH?
    Esophagus
  • What reagent/chemical used for starch test?
    Lugol/ Iodine
  • Where mechanical/ physical digestion takes place?
    Mouth
  • Name a substance that aids chemical digestion.
    ENZYME
  • What is the colour changing as positive result of reducing starch test?
    Turn to black/ dark blue
  • What is absorbed in the LARGE INTESTINE?
    WATER