B5e2 Digestion

Starter: Identify The Human Digestive System Letter Structure A B C D E F Oesophagus B Stomach D C Small Intestine Large Intestine Rectum E Anus F Is there an important part of the system not shown on the diagram?

Success Criteria State where food enters and leaves the tissues (Grade E) Describe how food molecules are absorbed (Grade C) Explain how the small intestine is adapted for efficient adsorption (Grade A)

Specialised parts of the digestive system Use p30 to create a flow chart identifying the different parts of the digestive system and how they are specialised for their function

Specialised parts of the digestive system Mouth – salivary glands (moisten food and contain enzymes) Oesophagus – peristalsis Stomach – physical and chemical digestion Liver bile Pancreas  enzymes Small intestine(first part) enzymes Small intestine (second part) absorption Large intestine  absorbs water

HIGHER: Villi Small intestine adaptations Villi to increase surface area Thin wall Good blood supply

Life of a Chip: Extended Writing

Peer Assessment: ?/5 Correct order of the digestive system Included both chemical and physical digestion Included the role of both amylase and carbohydrase in the break down of starch Included the role of bile Include the breakdown of fat (Liapse) Include absorption of smaller molecules into blood

Success Criteria State where food enters and leaves the tissues (Grade E) Describe how food molecules are absorbed (Grade C) Explain how the small intestine is adapted for efficient adsorption (Grade A)