technique to determine results: calculate rates of apparatus and write a the time taken to reaction using raw data and method. Identify completely digest a graphs. Draw conclusions variables. Present and starch solution at a and give explanations for the analyse the results: range of pH values. results. calculate rates of Iodine reagent is to be reaction using raw data used to test for starch and graphs. Draw every 30 seconds. conclusions and give explanations for the Temperature must be results. controlled by use of a water bath or electric heater. 4.2.2.1 Human digestive Explain why foods need to be 2 Observe a model for digestion Use bead model. Model: Strings of enzymes digested into small, soluble using popper beads to popper beads. Investigate the action of molecules. illustrate large molecules being Enzymes in the amylase on starch a Model gut: amylase broken into smaller ones. digestive system Describe the three types of model gut or interpret solution, starch chemically digest food enzymes involved in Introduce the names of the the results using the solution, cellulose into small, soluble digestion, including the three groups of digestive computer simulation. tubing, beaker, molecules that can be names of the substrates, enzymes, what they digest and iodine solution, absorbed. products and where the the products formed. Present Benedict’s solution, enzymes are produced. the information in a table. test tubes, spotting of enzymes with tile, waterbath. substrates, products and sites of production. Demo: large trough Explain how bile helps in the Bile is made by the of water, greasy digestion of fats. liver and stored in the frying pan, washing
technique to determine the time taken to completely digest a starch solution at a range of pH values. Iodine reagent is to be used to test for starch every 30 seconds. Temperature must be controlled by use of a water bath or electric heater. results: calculate rates of reaction using raw data and graphs. Draw conclusions and give explanations for the results. apparatus and write a method. Identify variables. Present and analyse the results: calculate rates of reaction using raw data and graphs. Draw conclusions and give explanations for the results. 4.2.2.1 Human digestive enzymes Enzymes in the digestive system chemically digest food into small, soluble molecules that can be absorbed. of enzymes with substrates, products and sites of production. Bile is made by the liver and stored in the Explain why foods need to be digested into small, soluble molecules. Describe the three types of enzymes involved in digestion, including the names of the substrates, products and where the enzymes are produced. Explain how bile helps in the digestion of fats. 2 Observe a model for digestion using popper beads to illustrate large molecules being broken into smaller ones. Introduce the names of the three groups of digestive enzymes, what they digest and the products formed. Present the information in a table. Use bead model. Investigate the action of amylase on starch a model gut or interpret the results using the computer simulation. Model: Strings of popper beads. Model gut: amylase solution, starch solution, cellulose tubing, beaker, iodine solution, Benedict’s solution, test tubes, spotting tile, waterbath. Demo: large trough of water, greasy frying pan, washing
AQA-8464-SOW-ORG.DOCX