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Digestion and Nutrition

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  • Where in the digestive system does chemical digestion occur?
    mouth, stomach, small intestine
  • Where in the digestive system does mechanical digestion occur?
    mouth, stomach, small intestine
  • Which enzyme breaks down starches in the mouth?
    amlyase
  • Pancreas is labelled ...
    D
  • What are the accessory organs of the digestive system?
    liver, gallbladder, panccreas
  • What is the main function of the large intestine?
    The primary function is to absorb water from the chyme.
  • Starches/carbohydrates breakdown into ....
    glucose/sugars
  • Lipids breakdown into ...
    glycerol and fatty acid
  • Where are the villi found?
    in the small intestine
  • Which enzyme is found in the stomach to breakdown proteins?
    pepsin
  • Small intestine is labelled...
    E
  • Which enyme needs an acidic environment?
    amlylase
  • Stomach is labelled ...
    C
  • Why does the digestive sytem have accessory organs?
    The accessory organs do not have contact with the food but provide necessary enzymes or bile for the breakdown of food into nutrients.
  • What keeps food from enetering the trachea?
    The epiglottis closes to allow food to be swallowed.
  • Mouth is labelled ...
    B
  • T or F, The digestive system only absorbs nutrients.
    False
  • proteins break down into ....
    amino acids
  • T or F, The digestive system eleminates the food that cannot be digested.
    True
  • Explain the difference between chemical and mechanical digestion.
    Mechanical digestion is the breaking apart of food into smaller particles. Chemical digestion needs an enzyme to completely breakdown the food.
  • Where is saliva found?
    mouth
  • T or F, The digestive system only breaks down food into nutrients.
    False.
  • Where does the completion of chemical digestion happen?
    small intestine
  • What unit is used to measure the energy content in food?
    Calorie
  • T or F, The digestive system is responsible for ingesting food.
    True
  • What is the function of the villi?
    To absorb nutrients into the blood.
  • Peristalsis is ...
    The process of smooth muscle contractions to move food through the digestive system
  • Liver is labelled ...
    A
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