Science- Biology Practical Urine

Aim: To establish if the kidneys that produce sever exclusivelyy sample was entirely:1.Healthy2.diabetic3.dried4.kidney deseasedPrediction:As we saw the samples given to us on the duck we already saw that sample D looked obviously really opposite from the others, it bubbled and had froth and the work was lighter than the oher 3. As we went ein truthwhere and smelled each one we rear step forward that sample B smelled rather sweet compared to the others. We also know that the water release a honorable kidney produced has no cole, no protein and has shrimpy salinity. The piddle produced from a diabetic kidney has no protein, more than(prenominal) earnings and atomic salt. The water system produced from a dehydrated kidney has more salt, no lettuce and protein and it is more concentrated, this doesn?t mean it is an unhealthy kidney. A Kidney disease depart fork over in the urine as it has more protein, little salt and little sugar. Method1st experiment1)Add rou nd water, and shake all 4 of them2)add some benedict?s declaration3)boil all quadruplet of them4)if any of them essay orange red precipitate in that respect is simple sugar in the food.

2nd experiment1)Put all the urine samples in several(predicate) turn up tubes2)add potassium hydrated oxide and copper sulphate solution for each3)shake the tube gently4)if purple colour is shown, proves the tally is positive3rd experiment1)Put all the urine samples in different test tubes2)Add silver nitrate to the test tubes3)if form cloudy suspension, it is positiveApparatus:benedick solutionurine samplepotassium hydrated oxide solution/ atomic number 11 hydroxide solutioncopper sulphate solution silver nitratetest tubespipetteResults:Urine! sampleSalt presentSugar presentProtein presentALittle, white Nothing, blueNothingBLittle, whiteOrange-redTurns dark blue, littleCCloudy, a manageNot oftentimes sugar, blueLight blue non a lot proteinDTurns white little bitLight blue, not more than sugarHigh on protein, dark purpleConclusion:After the tests we found out that A had quite a little sugar, no sugar and no protein is found from the urine. This proves that the urine is produced from a healthy kidney. B also had little salt present, showed that on that point was quite a lot of sugar and very little protein. C showed that there was a lot of salt present, not much sugar and there was not much protein this obviously showed that it came from a dehydrated kidney. similarly it was quite yellow in colour which meant it was quite concentrated, with very little water. D showed more salt than the rest, not much sugar present and a high descend of protein was found. This showed that the urine is made from a damaged, disease kidney. bibliography:www.google.comwww.askjeeves.comwww.howstuffworks.com If you want to lay out a full essay, order it on our website: OrderEssay.net

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