The Digestive System
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Questions and Answers

What is the main purpose of crushing food with our teeth?

  • To generate particles of the same texture (correct)
  • To make the food passage smooth through the alimentary canal
  • To break down complex molecules into smaller ones
  • To mix the food with saliva
  • What is the main function of saliva in the digestive process?

  • To move the food around the mouth while chewing
  • To absorb nutrients from the alimentary canal
  • To break down complex molecules into smaller ones
  • To wet the food to make its passage smooth (correct)
  • What type of molecules are broken down by the enzyme salivary amylase?

  • Cellulose molecules
  • Fatty molecules
  • Protein molecules
  • Starch molecules (correct)
  • What is the role of the muscular tongue in the digestive process?

    <p>To move the food around the mouth while chewing</p> Signup and view all the answers

    What is the term for the biological catalysts that help break down complex molecules into smaller ones?

    <p>Enzymes</p> Signup and view all the answers

    What is the primary reason for wetting the food in the mouth?

    <p>To facilitate the passage of food through the alimentary canal</p> Signup and view all the answers

    What is the function of salivary amylase in the digestive process?

    <p>To break down starch into simple sugars</p> Signup and view all the answers

    Why do our mouths 'water' when we eat something we like?

    <p>Because the salivary glands are stimulated by the taste</p> Signup and view all the answers

    What is the purpose of chewing food?

    <p>To break down the food into smaller particles</p> Signup and view all the answers

    What is the function of the muscular tongue in the digestive process?

    <p>To mix the food with saliva and move it around the mouth</p> Signup and view all the answers

    Study Notes

    Digestive Process

    • Food passes through the same digestive tract and needs to be processed into small particles of the same texture
    • Crushing food with teeth initiates the processing of food
    • Food is wetted with saliva to facilitate smooth passage through the soft-lined canal

    Saliva and Salivary Glands

    • Saliva is a fluid produced by salivary glands
    • Saliva is secreted when we eat something we like, causing the mouth to 'water'
    • Saliva contains an enzyme called salivary amylase

    Breakdown of Complex Molecules

    • Food is complex and needs to be broken down into smaller molecules for absorption in the alimentary canal
    • Biological catalysts called enzymes help break down complex molecules
    • Salivary amylase breaks down starch (a complex molecule) into simple sugar

    Digestive Process

    • Food passes through the same digestive tract and needs to be processed into small particles of the same texture
    • Crushing food with teeth initiates the processing of food
    • Food is wetted with saliva to facilitate smooth passage through the soft-lined canal

    Saliva and Salivary Glands

    • Saliva is a fluid produced by salivary glands
    • Saliva is secreted when we eat something we like, causing the mouth to 'water'
    • Saliva contains an enzyme called salivary amylase

    Breakdown of Complex Molecules

    • Food is complex and needs to be broken down into smaller molecules for absorption in the alimentary canal
    • Biological catalysts called enzymes help break down complex molecules
    • Salivary amylase breaks down starch (a complex molecule) into simple sugar

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    Description

    This quiz covers the process of digestion, including the role of teeth, saliva, and the digestive tract. Learn about the breakdown of food into smaller particles and the functions of the salivary glands.

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