NO2-Presence of nitrates of lead and bariumPresence of Zn2+Presence of NH4+Absence of nitrate‚ nitrite‚ zinc and ammonium ions | 3 | Solubility: a) In water b) In dil. HCl | SolubleSoluble in dil. HCl but insoluble in water | Water soluble saltsPresence of CO32- | 4 | Flame test:A paste of the salt was made with few drops of con. HCl and was introduced into the non-luminous flame. | (i)Brick red colour is imparted to the flame(ii) Crimson red(iii) Apple green(iv) Bluish green(v)No characteristic
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source of ATP in anaerobic microorganisms 13. Under anaerobic conditions Fermentation is the metabolic pathway that regenerates the supplu of NAD+ for glycolysis 14. For a bond to be “high energy” such as between phosphate groups in ATP‚ The hydrolysis of such a bond is particularly energetically favorable 15. Sugars‚ fats and amino acids can be converted to Acetyl CoA in the mitochondria 16. When fatty acids are oxidized to Acetyl CoA‚ each cycle of the reaction removes 2 carbon atoms from
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Rutledge Krystal Flakes Robert Grimes Jasmine Ross June 5‚ 2012 Purpose: The purpose of this experiment is to use kinetics to study a solvolyis reaction Introduction: The purpose of this experiment is to understand the kinetics of the hydrolysis of t-butyl chloride.The kinetic order of reaction was studied under the effects of variations in temperature‚ solvent polarity‚ and structure. It is particularly observed in tertiarhalides i.e. in SN1mechanism‚ Nucleophilic Substitution which is
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ii)Distillation The peels of nendran variety of bananas are taken as they are rich in cellulose and are kept in hot oven at 338K and dried sample is taken and is dissolved in hot water for starch extraction through soxhlet apparatus. This solution is treated with amylase enzyme for hydrolysis of starch to occur. It is the subjected to fermentation process by inoculation of S.cerevisiae for 3 days at 300K which results in the production of ethanol. Ethanol from the solution is extracted by
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Abstract This experiment was carried out to monitor the ability of the Barley Amylase Enzyme to effectively break down starch in solutions that are increasing in neutral pH. To do this the experiment was carried out so that tubes containing a reaction solution of the Amylase enzyme and starch were simultaneously mixed. The reactions were then introduced to I2-KI‚ which stopped the reactions‚ at two minute intervals. Each of these trials was repeated three times to ensure proper accuracy. After
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consisted of the same concentration and amount of starch and amylase. After having each test tube placed in these environments for several minutes a droplets of each mixture was placed onto each slot which contained liquid solution of iodine. Each environment contained two different test tubes‚ one test tube was starch and the other was amylase. A droplet was placed in ten to thirty second intervals to see the different states of starch break up. When starch is present with iodine‚ the solution is a dark
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precipitate. Iodine (i) solid or (ii) solution A very dark solid (i) Gently heat the dark coloured solid. (ii) Test aqueous solution or solid with starch solution. (i) Gives brilliant purple vapour. (ii) A blue black colour. (i) Iodine forms a distinctive coloured vapour. (ii) Forms a blue-black complex with starch and in biology the test is used to detect starch with iodine solution. Tests for Halide Ions In test (i) the silver nitrate is acidified with dilute nitric acid to prevent the precipitation
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lab‚ I will learn how the complex digestive system breaks down substrates such as fats‚ proteins and carbohydrates. Activity 1: Assessing Starch Digestion by Salivary Amylase Data: Chart 1 – Salivary Amylase Digestion of Starch Tube # 1 2 3 4 Additives Amylase‚ Starch Amylase‚ Starch Amylase‚ DI Water DI Water‚ Starch pH 7.0 buffer pH 7.0 buffer pH 7.0 buffer pH 7.0 buffer Incubation Cond. Boil‚ Inc. 37 deg.C 37
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molecule consisting of many similar building blocks linked by covalent bonds c. dehydration synthesis or condensation reaction-monomers are connected by a reaction in which two molecules are covalently bonded‚with loss of water molecule d. hydrolysis-a process that is essentially the reverse of dehydration synthesis; it means to break using water‚ 2. a. What are carbohydrates? include both sugars and polymers of sugars b. What is the general formula for a carbohydrate? c. Why
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are enzymatic desizing and oxidative desizing. Acid steeping is a risky process and may result in the degradation of cotton cellulose while rot steeping‚ hot caustic soda treatment and hot washing with detergents are less efficient for the removal of the starch sizes. * Enzymatic desizing : Enzymes are solubilizing bio catalysts‚ mainly proteins‚ thermo labile (readily changed or desized by heat) and highly specific in their action. A
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