Purpose: To use a set of standardized procedures to test for simple sugars and starch‚ proteins‚ and fats. Hypotheses: A.) B.) C.) Equipment: -Safety goggles -Lab apron -400 mL beaker -Utility stand with ring clamp -Hot plate -Thermometer -10 mL graduated cylinder -Test-tube racks -8 to 16 test tubes -Test tube holder -Medicine dropper -Rubber stoppers -Test-tube brush -Wax pencil -Distilled water
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The presence of carbohydrates in a solution can be determined by a qualitative test of Molisch test. Molisch test is a general‚ sensitive chemical test and positive for all kinds of carbohydrates which in free form or in combined form. The test is based on the dehydration of the carbohydrate by concentrated sulfuric acid to produce an aldehyde which condenses with two molecules of phenol‚ resulting in a coloured compound. Molisch reagent is a solution of α-napthol in 95% ethanol. The aldehydes produced
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My partner and I were given unknown number 3 in the laboratory. After performing various tests over the course of a few weeks on our unknown‚ we came to the conclusion that our unknown organism is Klebsiella pneumoniae (K. pneumoniae). K. pneumoniae is a gram negative bacillus shaped microorganism. We observed that K. pneumoniae is a nonmotile organism. We performed multiple tests on our unknown culture‚ therefore we are very confident that it is correctly identified. We identified that K. pneumoniae
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least difficult sort of starch. Sugars are a wellspring of vitality for your phone’s‚ frame a portion of bigger‚ more perplexing particles‚ and give vitality stockpiling. Since your body rapidly processes sugars‚ they additionally give you a fast wellspring of vitality. There are three sorts of sugars. The three different types of sugars are monosaccharides‚ disaccharides‚ and polysaccharides. Monosaccharides otherwise called basic sugars‚ is the least difficult starch structure. When all is said
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Comparison of Extended Column Test (ECT) and Propagation Saw Test (PST) Introduction: Stability or “Instability” Tests are an important tool for determining the likelihood of a slope to produce an avalanche. Many different tests have been developed over the years – each with their own strengths and weaknesses. These tests provide a way to safely apply stress and deformation to a slope that is steep enough to slide (usually 250 or steeper) and observe and quantify the results. These results
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imply the non-stationarity of the linear combinations of these series. Hence‚ it is a prerequisite to ensure that all variables are integrated of order one in levels before employing the panel cointegration tests. Table 3 presents the results performed by Im‚ Pesaran and Shin unit root test of all variables for the four panels of economies tested in both levels and in first difference. Panel A‚ B‚ C and D represents all income economies‚ high-income economies‚ upper-middle-income economies and
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CLASSIFICATION TESTS FOR ORGANIC HALIDES James Anand L. Regala‚ Sabrina Nicolle G. Sarte‚ Ann Michelle Siao‚ Michael Sibulo‚ Victoria Tan Group 8 2C Pharmacy Organic Chemistry Laboratory ABSTRACT This experiment is done to classify organic halides. Most organic halides are synthetic and are not flammable. One way to classify organic halides is by classifying its -carbon atom as primary‚ secondary or tertiary. If the -carbon is attached to one R group‚ it is then primary. If the -carbon is
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In the lab‚ three experiments were completed: the Iodine experiment‚ Benedict’s experiment and the Biuret experiment to test for starch and glycogen‚ reducing sugars and protein in the respective order. 12 solutions were given where 11 were known and the 12th was an unknown. The solutions that were supplied can be found in the results and observations section of this report. When completing such experiments‚ there are always controls used to make sure the procedure is followed and that no cross
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the hospital recently and brought a sample their infectious disease on an agar plate. A series of tests were completed in order to identify this unknown sample. First‚ the plate was analyzed for its hemolysis characteristics. Afterwards‚ a Gram stain was performed from a sample of the agar plate and the slide was viewed under the microscope. Once‚ the microscopic visual was captured‚ a catalase test followed. Next‚ for further data‚ MSA results were recorded‚ along with antibiotic observations of
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Aim: To find out which samples consists of starch/ proteins/ reducing sugar/disaccharide out of 4 given samples A‚ B‚ C and D. Research Question: Out of the four given samples which sample consists of protein/ starch/reducing sugar/ disaccharide? What color changes will help to identify the contents of each sample when treated with iodine‚ biuret agent and benedicts solution? Theory and background information: What is a protein?1 Proteins are macromolecules‚ consisting of one or more chains
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