Food and digestion

• The 7 Main Nutrients


  • protien
  • Minerals
  • water
  • Vikmins
  • Fibre
• Digestion


  The process by which large insoluble molecules are broken down into small soluble molecules
• Where digestion starts


  • Mouth
• Organs involved in digestion


  • Pancreas
  • Liver
  • Salivary glands
  • Stomach
  • Small Intestine
  • Large Intestine
  • Gallbladder
  • Rectum
• There is no starch found outside the small intestine because starch is too large to pass through the pores of the tubing
• Enzymes


  Special chemical reactions that catalyse reactions but are not used themselves
• Food Tests


  1. Place a small sample of the food in a test tube

  2. Add a few drops of the testing solution to the test tube

  3. Observe the colour change
• Food Tests


  • Testing for starch using iodine solution
  • Testing for protein using Biuret solution
• Conditions concerning nutritional intake