Friday, November 8, 2013

Biology

Biology Dot point Summary 8.3 Patterns In nature Plan, choose equipment ore resources and finish a first hand investigation to gather data and use available evidence to name the followers substances in tissues: - Glucose - starch - Lipids - Proteins - Chloride ions - Lignin Experiment: Chemicals in cellular Tissue Aim: To use symptomatic tests to determine wether the following chemicals are present in apple, potato and tuna fish cellular tissue: glucose, starch, lipids as oils, protein, sodium chloride salt, and lignin. surmisal: Apple, potato and tuna do not contain whatever of the above chemicals. system: 1. The cellular tissue willing motif to be mashed into pulp. A small amount of distilled water will need to be added to this pulp ONLY FOR glucose sodium and chloride tests. 2. account book discolour changes in a table. 3. Test glucose by adding a or so drop s of benedicts solution to a archetype diffusion of apple in a test pipage because quietly heat over flame. And so on | raise |Reagent | discussion |Result | |Glucose |Benedicts solution |Add a few drops to a sample in a test tube and |Turns orange | | | |warm gently over a bunsen flame.
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| ! | |Starch |Iodine solution |Add a few drops to sample in a testube |Turns Black/purple | |Lipids | brownness reputation |Rub a small sample onto the core multitude of the paper|Paper turns clear/ transparent | | | |and hold up to the light | | |Protein |Biuret Reagents (sodium hydroxide)|Danger: Caustic...If you want to get a adequate essay, order it on our website: BestEssayCheap.com

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