Game Preview

Lesson 3.3 Digestive System

  •  English    10     Public
    Digestive System
  •   Study   Slideshow
  • What is the process by which you break down food into small nutrient molecules?
    Digetsion
  •  10
  • What are nutrients?
    Nutrients are the substances in food that provide the raw materials the body’s cells need to carry out all their essential processes.
  •  15
  • What are the two types of digestion?
    mechanical digestion and chemical digestion
  •  15
  • Where does mechanical digestion begin?
    Mouth
  •  15
  • Where does chemical digestion begin and what is broken down?
    Mouth; carbohydrates
  •  15
  • What causes mechanical digestion to begin in the mouth?
    Chewing
  •  15
  • What are enzymes?
    Enzymes are proteins that speed up chemical reactions in the body.
  •  15
  • What breaks down protein in the stomach?
    Enzymes and acid
  •  15
  • The majority of chemical digestion and nutrient absorption into the blood takes place in the
    small intestine
  •  15
  • The liver and pancreas secrete?
    Enzymes
  •  15