digestion about the different organs and their functions in digestion 0.0 / 5 ? BiologyEnzymes and digestionGCSEAQA Created by: maria_xoCreated on: 24-05-14 13:26 what is digestion? it is all about breaking large insoluble molecules of food into smaller soluble ones so they can be absorbed 1 of 11 alimentary canal the canal where the food is broken down to its elements by mechanical and chemical procedures 2 of 11 saliva lubricates and makes it easy to swallow also it contains amylase which is a carbohydrate enzyme 3 of 11 stomach breaks down proteins with protease enzymes pepsin and trepsin 4 of 11 how long does food stay in the stomach for? 4 hours 5 of 11 what does the hydrochloric acid in the stomach do? it kills all bacteria and has a low pH in order for the enzymes to work 6 of 11 what does the liver do? the liver makes bile which emulsifies (breaks up) fats. It is also alkaline to give the right pH for the enzymes in the small intestine 7 of 11 what is the oesophagus? it links the mouth to the stomach 8 of 11 what is mechanical digestion? breaking down food with teeth 9 of 11 what is chemical digestion? digestion using enzymes 10 of 11 how long is the process of digestion? 12 - 16 hours 11 of 11
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