Human Nutrition

• Diet

  Contains the right amount of all nutrients for cells to work properly
• Ingestion

  Taking in food by the mouth
• Mechanical digestion

  The breakdown of food substances into smaller pieces, increasing the surface area for enzymes to work with.
• Chemical digestion

  the breakdown of food molecules into smaller food molecules done by enzymes.
• Crown

  tooth visible above the gum line
• Gum

  tissue which overlays the jaw
• Root

  embedded jaw bone