digestion

• Carbohydrases convert carbohydrates into simple sugars
• amalyse is a carbohydrase which breaks down starch. It is made in:

  1. the salivary glands
  2. the pancreas
  3. the small intestine
• proteases convert proteins into amino acids
• proteases are made in

  1. the stomach (called pepsin)
  2. the pancreas
  3. the small intestine
• lipases convert lipids into glycerol and fatty acids
• lipeases are made in:

  1. the pancreas
  2. the small intestine
• bile neutralises the stomach acid and emulsifies fat
• bile is produced in the liver and stored in the gall blader before released into the small intestine
• the hydrochloric acid in the stomach makes the PH too acidic for enzymes in the small intestine to work properly. Bile is alkaline - it neutralises the acid
• bile emulsifies fats - it breaks the fat into tiny droplets. this gives a bigger surface area of fat for the enzyme to work on making digestion faster