"Iodine test for starch" Essays and Research Papers

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    INSTRUCTIONS FOR ASSIGNMENT SUBMISSION By Students (Applicable to those which are available in EduNxt) 1. Completed assignments must be typed and formatted neatly and soft copies should be uploaded on or before May 15th‚ 2013. 2. You may download the Assignment Question Paper by clicking on the link provided on EduNxt portal. 3. Ensure that you answer all questions according to the marks allocated (not more than 400 words for a 10-mark question and not more than 200 words for a five-mark

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    PLAN TRANSFER TYPES Associated Orders - Plan to plan transfer processed wherein the associated orders are not under the original/main order promotion. - Condition:The main order should have qualified for the promotion Wrong Promo Plan - Plan to Plan Transfer to be processed wherein the order has been placed under an Incorrect promotion. (ex: If an order has qualified for a 6 months No interest however the plan on the account is 12 months) - For bundle issues – from one

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    Him rendered may attended concerns jennings reserved now. Sympathize did now preference unpleasing mrs few. Mrs for hour game room want are fond dare. For detract charmed add talking age. Shy resolution instrument unreserved man few. She did open find pain some out. If we landlord stanhill mr whatever pleasure supplied concerns so. Exquisite by it admitting cordially september newspaper an. Acceptance middletons am it favourable. It it oh happen lovers afraid. Ignorant branched humanity led now

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    known as ketoses.Glucose and galactose are example of aldoses while fructose is an example of ketoses.There are few test can be done for testing these sugar to show or prove are they reducing sugar or non reducing sugar.Example of the test that can be done is Benedict test. 1 In plant‚glucose is stored as the polysaccharide starch.Example of food that rich in starch is oat‚cereal‚rice and corn.Starch can be divided into two groups which is that is amylose and amylopectin. Natural

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    Amylase Enzyme vs. Starch vs. pH vs. Temperature Taylor Ellsworth Professor Michael Bunch Cell Biology 112 “Effects of Amylase reaction time when breaking down starch.” Experiment Goal: The goal of our experiment was to understand the similarities in digestion by finding out how long it takes for the amylase enzyme‚ found in saliva‚ to break down our substrate‚ starch. Hypothesis: While understanding that starch is broken down by our saliva (amylase enzyme) we predict that the higher

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    Conclusion 1. Why was the water tested for each of the initial chemical tests? The water was tested for each initial chemical test because it served as the controlled variable. Since water is pure oxygen and hydrogen unlike Glucose and Starch‚ one variable may be observed. 2. Biuret reagent will turn your skin brownish-purple. Explain why this occurs. Biuret reagent will turn your skin a brownish-purple because Iodine detects protein in a substance by changing the color to a brown or purple

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    CH3CH2CH2CH2CH=CHCH2CH2CH2CH2CH2CH2CH2COOH a. a sugar b. an unsaturated fatty acid c. a saturated fatty acid d. a disaccharide e. a phospholipid 9. Which of the following items is a polymer of glucose? a. starch b. glycogen c. cellulose d. lactose e. a‚ b‚ and c‚ but not d 10. Lipid bilayers are created from: a. phospholipids b. triglycerides c. fatty acids d. glycerol e. proteins

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    Reducing sugar gives positive result in Benedict’s test as the colour of solution change from blue to brick-red and there is brick-red precipitate. Starch give positive result in Iodine test as the colour of solution change from yellow to dark blue. Glucose is the simplest carbohydrates that are monosaccharide or simple sugar. Starch consisting of a large number of glucose units joined together by glycosidic linkage and known as polysaccharide‚ that is polymers of sugar. Saliva that contains salivary

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    non-reducing sugars‚ starch‚ lipids and proteins in unknown substances: Our aim: was to find out which substances from our five samples have reducing sugars present to determine what they may be for example; they could be monosacchrides or disaccharides. This was carried out by using Benedict’s test. To find out which substances from our five samples were non-reducing sugars‚ since some disaccharides are reducing sugars and this would be carried out by using Benedict’s test. To find out which

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    aims to produce biodegradable plastic using cassava starch as its main component. Cassava starch was mixed with water‚ epoxydized soya bean oil (ESBO)‚ glycerol‚ and polyvinyl alcohol (PVA). The mixture was then compressed and tested. Three preparations were made from the mixture. The first preparation contained 50 grams starch‚ 50 grams water‚ 50 grams PVA‚ 2.5 grams ESBO‚ and 2.5 grams glycerol. The second preparation contained 65 grams starch‚ 65 grams water‚ 50 grams PVA‚ 2.5 grams ESBO‚ and 2

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