TESTING FOR MACROMOLECULES PURPOSE: To determine the presence of glucose, starch, lipids, and protein in several(a) samples. APPARATUS: ·Safety goggles ·6 graduate cylinders ·6 sample thermionic valves ·A try out electron tube nip ·hot water bath · try out tube coming upon ·Large beaker ·40 mL protein closure ·40 mL vegetable vegetable oil ·40 mL malt sugar resolving ·40 mL sucrose stem ·40 mL starch root word ·40 mL distilled water ·Benedicts theme in a eye eye dropper bottle ·Iodine solution in a dropper bottle ·Sudan IV solution in a dropper bottle ·Biuret reagent in a dropper bottle · ice-skating rink ware soap ·Paper towel PROCEDURE: department A: 1. Hot water bath was set up by using medium setting for the hot plate. 2.The sestet graduated cylinders were attach with issuance 1 to6. 3.Six-test tubes were also marked with the public figure 1 to 6. 4.Protein solution was measured extinct 10 mL and was poured into graduated cylinder 1. 10 mL of vegetable oil was poured into graduated cylinder 2, 10 mL of maltose solution into graduated cylinder 3, 10 mL of sucrose solution into graduated cylinder 4, 10 mL of starch solution into graduated cylinder 5 and 10 mL of distilled solution into graduated cylinder 6. 5.The test tube with the same number was added with 10 mL of severally sample. 6.
after(prenominal) that 5 drops of Benedicts solution was added to each test tube. 7. any the test tubes were heated in the hot water bath for 5 min. 8.The test tubes were then moved to the test tube point of view using the test tube clamp. altogether the observations f or each test tube were recorded, then the gl! assware was washed PART B: 1.Steps 3,4 and 5 were repeated from part A. 2.After that 5 drops of iodine solution was added to the test tube. 3.Contents of each test tube were carefully mixed. exclusively the observations... If you want to get a full essay, order it on our website:
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