WALT: Revise the key nutrients and digestion

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Presentation transcript:

WALT: Revise the key nutrients and digestion Describe the key nutrients and their function in the body. Describe and explain how food is digested using enzymes. Explain what happens to food when it has been broken down.

Revision on Food and digestion Name of nutrient C P F M V D E.g. Usefulness in body Food tests and positive results Not enough calcium Not enough protein Starch Sugar Protein Fats Diagram of villi How is the villi adapted? Revision on Food and digestion Where does food pass through in the digestive system Causes of bacteria Good: Bad: Nutrient C P F Enzyme Small pieces

Why do we need to digest our food? - C O N E T What is food needed for in our bodies? - - Draw a picture of the digestive system and label the parts Can you add to your diagram and say what happens in each part? Write down 3 things you already know about the digestive system and 1 thing you want to find out - - - Which three parts of the body is food digested? Which food groups aren’t digested? When the food is broken down explain where it moves from and to…. Why do molecules such as fats, carbohydrates and protein need to be broken down? What role do enzymes play in this? What enzymes break down carbohydrates, fats and proteins? SUPER HARD QUESTION Villi are found in the small intestine. What are they?

Starter Create a 60 second news flash on the topic of digestion (i.e what have you learnt). Create as many news headlines as possible to read in your news flash relating to the topic.

Tube Line Starting point: The mouth

http://www.bbc.co.uk/learningzone/clips/nutrie nt-groups-and-digestion/10648.html http://www.bbc.co.uk/learningzone/clips/digest ive-enzymes/10649.html

Why was the mixture of enzyme and starch kept in a water bath? The experiment was then carried out in a water bath 10oC hotter. What affect would this have on the investigation? What type of nutrient is starch and sugar?

Write down three things… You have learnt in the topic over a number of lessons. You learnt now that you didn’t know 50 minutes ago. You would like to find out more about…

Homework Take the three things you mentioned in the plenary and find out more information about them. Bring the information you have found out to the next lessons. E.g. The enzyme protease You would go away and find out what protease does.