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Experiment to test Starch in Two Types of Leaf
Member rating: No Rating | Words: | Submitted: Thu Jul 11 2002
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Saturday, 15 September 2001 Experiment to test Starch in Two Types of Leaf Apparatus and Materials: 1. Forceps 2. Tongs 3. Scalpels 4. Bunsen burner 5. Gauze 6. Test tube rack 7. Tripod 8. Alcohol (ethanol) 9. Ceramic tile 10. Variegated leaf 11. Germanium leaf 12. Boiling tubes 13. Beaker 14. Iodine 15. Splint Method 1. Firstly heat 150ml of water using a Bunsen burner. Rest the beaker of water on a gauze which I on the tripod. Wait for a few minutes until the water starts bubbling vigorously. This is the sign that the water is boiling. When this happens turn out the Bunsen burner. This is very important to do as if it is not the substances may react and possibly cause a fire. 2. Use forceps to dip both of the different leaves into the hot water for about 30 seconds. The reason for this is to break down all the cell walls. The hot water will kill the cytoplasm, denature the enzymes and will make the...
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