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Physical & Chemical Changes in Digestion

Quiz by AMY BURCHETT

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20 questions
Show answers
  • Q1
    A new substance is produced (formed)
    Mechanical change
    Chemical change
    Physical Change
    30s
  • Q2
    the reason large molecules are broken into small molecules
    easier to release waste
    so food tastes better
    easier to absorb into blood
    30s
  • Q3
    The organ system that digests food to provide you with nutrients
    Excretory System
    Respiratory System
    Circulatory System
    Digestive System
    30s
  • Q4
    Moving/pushing food through your body (happens in the esophagus and large and small intestine)
    Enzymes
    Peristalsis
    Thermal
    Chemical
    30s
  • Q5
    Which of the following is the best evidence that digestion involves chemical changes?
    The product's mass equals the reactants' mass
    Time is required to accomplish results
    New substance produced
    Compounds are involved
    60s
  • Q6
    Which of the following is an example of a PHYSICAL change but NOT a chemical change?
    Hydrochloric acid in the stomach
    Teeth break food into smaller particles
    A juice released by the pancreas neutralizes stomach acid
    Saliva breaks bonds into starch, releasing simple sugars
    60s
  • Q7
    This type of change CANNOT be undone by physical means
    Physical Change
    Chemical Change
    30s
  • Q8
    Which digestive process listed below is best classified as a physical change?
    Enzymes in the stomach break down proteins into smaller fragments
    Bacteria converting lactose into simple sugars in the intestines
    Starch from crackers is converted to simple sugars through the action of enzymes in saliva
    Teeth grinding a pickle into smaller pieces in the mouth
    60s
  • Q9
    Which of the following is a physical AND chemical change?
    Large intestine removing water from food
    Pushing food from esophagus to stomach
    Chewing food while enzymes in saliva break bonds of food
    Nutrients being absorbed into bloodstream
    60s
  • Q10
    When something changes in shape or size or is moved to a different location
    Physical Change
    Chemical Change
    30s
  • Q11
    When the bonds of a molecule or compound are broken
    Physical Change
    Chemical Change
    30s
  • Q12
    What types of changes occur as your food is digested
    Mechanical and Chemical
    Mechanical Only
    Chemical Only
    30s
  • Q13
    What type of changes take place in your mouth when you chew food?
    Chemical during the entire process only
    Physical when food is cut and ground and chemical when food is mixed with saliva
    Chemical when food is cut and ground and physical when food is mixed with saliva
    Physical during the entire process only
    60s
  • Q14
    Chemical Change
    saliva breaks down food
    Esophagus uses peristalsis
    Teeth break food into smaller pieces
    Stomach churns food
    30s
  • Q15
    How is food digested in your mouth?
    Mechanically Only
    Chemically Only
    Mechanically and Chemically
    30s

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