Table 1. Results of the Qualitative Tests of Unknown Lipid Samples Acrolein Test Copper acetate Test Colorless Colorless Greenish-blue color Colorless Ammonium Molybdate Test Light pink color No precipitates Brown solution No precipitates Brown solution | No precipitates Light pink color Yellow precipitates Light pink color | No precipitates Sample No. Hubl's Test Liebermann- Pungent odor Pungent odor No distinct odor Pungent odor No distinct odor Burchard Test No color change Bluish-green color No color change Bluish-green color No color change 1 2 3 4 Greenish-blue color
Q: The number of bacteria in the samples need to be quantified. The laboratory uses a specific protocol…
A: Serial dilution is a process in which we dilute the sample and do passage, transfer, which is…
Q: • TEST done and RESULT • MOLISCH • SELIWANOFF • BENEDICT • BARFOED • LUGOL'S - • OZAZONE TEST IODINE…
A: Carbohydrates are a major source of energy. Depending on the number of monomers forming the…
Q: The table below summarizes the experimental results obtained from test performed on two types of…
A: IODINE TEST : The iodine test is a chemical reaction that is used to test for the presence of starch…
Q: When one uses Benedict’s reagent added to UNKNOWN samples taken and added (as a liquid) by a pipette…
A: Sugars capable of reducing ferric or cupric ions are called reducing sugars. All monosaccharides…
Q: Please give the color of each analysis indicating positive result and substance formed causing the…
A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…
Q: I Wo wil now Use tubes 1A-4A O eet each solution for the presence of gar We wi be using Benedict's…
A: Starch is a complicated molecule with several smaller branches. The framework must be dismantled…
Q: Report Table 1–Testing Study. Reagent Test Color of Negative test (i.e. the reagent in pure when the…
A: Simple chemical tests have made it possible to detect the presence of starch, sugars, proteins, and…
Q: A. Experimental Results Table 1. Results of the Qualitative Tests of Unknown Lipid Samples Sample…
A: Copper Acetate test identifies saturated and unsaturated lipids.It is used to distinguish between…
Q: 1. Label 3 test tubes 1, 2 and 3. Place the substances in each test tube as indicated below: Tube 1%…
A: pH affects the charge and shape of the substrate and enzyme both and maximally the enzyme's activity…
Q: A. Characteristic Tests of Carbohydrates Sample Barfoed's Test Molisch Test Benedict's Test lodine's…
A: Carbohydrates are classified as reducing and non-reducing sugars. The reducing property of the…
Q: 4. Complete the table for Watson-Schwartz Test Results for porphobilinogen and urobilinogen…
A: Watson Schwartz test: This test detects the intermittent porphyria by identifying the presence of…
Q: Sample No. 1 2 3 4 5 Sample No. Sample Identity 1 2 3 A Table 1. Results of the Qualitative Tests of…
A: Copper Acetate test is used to distinguish oil and fatty acid. Copper acetate reagent does not react…
Q: An unknown sample was tested if there is a presence of lipid, after the test it shows that it is…
A: A group of organic compounds includes lipids that are insoluble or poorly soluble in water.…
Q: Samples subjected to a test were given. Determine the result of the samples subjected to the given…
A: Samples subjected to a test were given. Determine the result of the samples subjected to the given…
Q: Test Reagents Used Positive Color Purpose Structure of Chemical Change 1. Biuret test 1% CuSO4 in…
A: Proteins are essential biomolecules, consisting of one or more long chains of amino acid residues.
Q: A 50 mL sample of soup was found to be contaminated with E. coli. A dilution of the soup was…
A: Procedure to find CFU- 1. Dilute the sample 2. Plate the dilutions with correct growth medium 3.…
Q: The number of bacteria in saliva samples was determined by collecting the saliva, making serial…
A: Microorganisms are minute organisms that cannot be seen by naked eyes. They can be visualized only…
Q: QUALITATIVE TEST SAMPLE A В C MOLISCH BENEDICT + BARFOED SELIWANOFF FEHLING BIALS + + + +
A: There are different types of carbohydrates based on the number of carbon atoms, functional groups,…
Q: Answer post lab question only. You can use this as your source : https://youtu.be/rKng5-ij6kQ
A: Glucose,Fructose- Reducing monosaccharide(as free hemiacetal group is present) Lactose - Reducing…
Q: A. Experimental Results Sample Copper acetate Test No. 1 2 3 4 5 1 2 Sample No. Sample Identity 3…
A: 1. Copper acetate test: It is used to differentiate between Oils ( fatty acids+glycerol) and free…
Q: Give a broad answers to the following.
A: Hydrophobic biomolecules are lipids that are insoluble in water, but organic solvents such as…
Q: The order is for Cefadyl 800mg IM every 8 hours. On hand is a 1 gram vial of Cefadyl with the…
A: Cefadyl is a name for drug Cefapirin. It is a Cephalosporin antibiotic of the first generation . It…
Q: Which of the following is FALSE about the Nitrate Reductaion Test, procedure and interpretation?…
A: Among the many biochemical tests conducted on unknown bacterial isolates to identify them, nitrate…
Q: a. Silver reduction test: What is the substance responsible for the color production? b. Jaffe’s…
A: Qualitative analysis is a branch of chemistry. It deals with the identification of elements present…
Q: What is the purpose of the vial that does not contain chara? (the solution with chara turned…
A: bromothymol blue is an acid base indicator. It is blue if the solution is alkaline and it become…
Q: III. Acrolein Test (Record the odor; write pungent or not pungent) Glycerol Coconut Oil Paraffin Oil…
A: Acrolein Test: A test to detect the presence of glycerol and other fat. Here a dehydrating agent…
Q: Test Done and Result Molisch test Benedict's test Barfoed's test Lugol's lodine Orcinol's Test…
A: Molisch's test yields positive purple ring for all carbohydrates Seliwanoff's test gives yellow…
Q: A. Experimental Results Sample No. 1 2 3 4 5 *Enter qualitative observations Table 1. Results of the…
A: Sample No. 1- Lactose Sample No. 2- Fructose Sample No. 3- Starch Sample No. 4- Ribose Sample No. 5-…
Q: Answer the numbers 1 & 2 1. Positive with Molisch Test and Benedict Test but negative with both…
A: Carbohydrates or carbs are maconutrient consisting of Carbon, hydrogen and oxygen atoms. In nature…
Q: Positive or Given Test Reagent Result Reason/Explanation Negative Lime Soda Molisch Test Sucrose…
A: Qualitative tests are used in the laboratories to test the presence or absence of a substance in a…
Q: A. Characteristic Tests of Carbohydrates Sample Solutions Molisch Test Benedict's Test Barfoed's…
A: The qualitative test measures the presence or absence of a substance. The different qualitative…
Q: Thelma 1. 2. 3. a. b. 1 cc 1 fluid ounce 1 Teaspoon 4.3 teaspoons 5. 6. 7. 7 III - - 8 Section VII…
A: Answer. 1. 1. 1 CC = 1 ml. 2. 1 fluid ounce = 30 ml. 3. 1 Teaspoon = 5 ml. 4. 3 Teaspoon = 15…
Q: All the following products must undergo sterility testing EXCEPT: Oral tablets Injections…
A: The healthcare industry uses various medical equipment and instruments that aid in the treatment of…
Q: the image contains results of the fluid thioglycolate medium tests. Please explain the results and…
A: Fluid thioglycolate medium test It is a multipurpose and enriched test. It is a differential medium…
Q: A. Experimental Results Table 1. Results of the Qualitative Tests of Unknown Lipid Samples Sample…
A: Lipids are one of the 4 macromolecules and is mostly hydrophobic in nature . Lipids are generally…
Q: Please give the color of each analysis indicating positive result and substance formed causing the…
A: Carbohydrates are a class of biological macromolecules that is composed of carbon, hydrogen and…
Q: A sample of pond water is tested using the most probable number method. There are 3 positive tubes…
A: Given , 10 mL - 3 positive tube 1 mL - 1 positive tube 0.1 mL - 1 positive tube
Q: B. Use the following table to answer the questions related to the Biuret protein test (5 - 7): Tube…
A: WE are answering 5 to 7 questions of section B. For rest of questions pls repost. Proteins are the…
Q: Jerell has tested samples of food left by the thief. They reacted positively to the Lugol test,…
A: The nutrients present in the food are fats (triacylglycerol, unsaturated fatty acids, mono- or…
Q: In the hydrolyzing polysaccharides with saliva, the instructor followed the steps in the order…
A: Potassium iodide test and benedicts test, both are the colorimetric tests. Potassium iodide test is…
Q: Observations and Results Average Count per ml of Sample (CFU/ml) Bacterial Dilution Factor ml of…
A: Introduction The Stepwise Dilution Of A Substance In Solution Is Referred To As Serial Dilution.…
Q: What is the best interpretation for the results below? Test/s Results Ninhydrin Fohl's Test Biuret…
A: Proteins are composed of twenty standard amino acids attached together via peptide bonds. These…
Q: Solubility Test Ninhydrin test iodoform test Observations + or - no colored spots on filter paper…
A: Asked : Fill the table with + or -
Q: Benedicts Test: Reagent’s Composition Observations: Test Sample Observations 0.1M glucose 0.04…
A: Glucose is a monosaccharide that contains six atoms of carbon and an aldehyde group, hence, it is an…
Q: Examine the given sets of table below. Which disinfectant is the MOST recommended? Support and…
A: given here are set of disinfectants with their phenol coefficient and growth of bacteria after…
Q: TEST ONE: When one uses Benedict’s reagent added to UNKNOWN samples taken and added (as a liquid) by…
A: Biomolecules are organic compounds produced by living organisms. They play important function as…
Q: A. Characteristic Tests of Carbohydrates Sample Solutions Barfoed's Molisch Test Benedict's Test…
A: Carbohydrates are composed of carbon, hydrogen, and oxygen atoms in the ratio of 1:2:1.…
Q: Red blood cells from a healthy individual were placed in each of the following solutions and…
A:
Q: 3. Formation and Composition of Film from Milk a. Place 10 mL of fresh milk in an evaporating dish.…
A: Milk is defined as a fluid or liquid which is secreted by the mammary glands present in the females…
Q: A. Characteristic Tests of Carbohydrates Sample Barfoed's Molisch Test Benedict's Test lodine's Test…
A: Molisch test helps in detecting the presence of carbohydrates in the given sample.
Match the qualitative test results to the sample identity in the table below and give its reaction profile matching rationale
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- https://www.youtube.com/watch?v=rKng5-ij6kQ Provide a schematic diagram for the Molish test methodologies in determining the presence of carbohydrates. Also, give the basic principle for the test. (not a graded question, the video is very brief) (please take time to answer)Example of a Protein Purification Scheme: Purification of the Enzyme Xanthine Dehydrogenase from a Fungus Volume Total Total Specific Percent Fraction (mL) Protein (mg) Activity Activity Recovery 1. Crude extract 2. Salt precipitate 3. Ion-exchange chromatography |4. Molecular-sieve chromatography 5. Immunoaffinity chromatography 3,800 22,800 2,460 0.108 100 165 2,800 1,190 0.425 48 65 100 720 7.2 29 40 14.5 23 1.8 275 152.108 11 Calculate the specific activity of step#4. Note that percent recovery=% Yield.6 item / matching type Samples subjected to a test were given. Determine the objective of the test. Choices: Confirm the hydrogenation reaction Identify degree of unsaturation Determine the acid value. Differentiate fixed oil from essential oils Confirms the esterification of the hydroxyl group Test the presence of unsaturated FA Determine alkaline hydrolysis to produce salts of fatty acids Identify the nature of salt Confirm the presence of glycerol Methyl salicylate in Spot Test Beeswax in Saponification Test Linseed oil in Iodine Test Tallow in Acrolein Test Perla in Formation of Soluble Salt Cholesterol in Salkowski Test
- A 15kg doe diagnosed with pregnancy toxaemia requires a dextrose fluidsupplementation. Given a dosage of 0.2ml/kg of body weight, prepare a 5%dextrose solution from a stock solution of 50%.A pharmacist quizzes a pharmacy intern on the aliquot method in the preparation of 12 capsules each to contain 80 mg of morphine sulfate and 3.2 mg of naltrexone hydrochloride. Lactose is to be used as a diluent, a prescription balance with a sensitivity of 6 mg is proposed, and a 4% error is acceptable. Provide the relevant calculations.Using DEAE-cellulose as ion exchange resin, indicate the starting and ending pH for the narrowest experimental pH range used to separate an amino acid mixture consisting of Gln, Leu and Lys Starting pH: _____ Ending pH: _____
- The reults for the macroscopic part: 0.30M glycerin – solution was translucent (could see text behind the test tube) 0.15M NaCl – solution was opaque (could not see text behind the test tube) 0.30M NaCl – solution was opaque (could not see text behind the test tube) 0.15M glucose – solution was translucent (could see text behind the test tube) 0.30M glucose – solution was opaque (could not see text behind the test tube) 0.30M Urea – solution was translucent (could see text behind the test tube) Results for microscopic part: 0.30M glycerin – no cells present 0.15M NaCl – normal sized cells 0.30M NaCl – crenated (shrunken and star-shaped) cells 0.15M glucose – no cells present 0.30M glucose – normal sized cells 0.30M Urea – no cells present Determine the osmolarity (hypoosmotic, isosmotic, or hyperosmotic) and tonicity (hypotonic, isotonic, hypertonic) of the following solutions.In which solutions did the osmolarity NOT match the tonicity? For those solutions, why did the osmolarity…Give three other chemical tests that can be used to characterize lipid samples (can be general or specific lipid samples). Briefly describe the principle, reagents used, and the sign for positive test results for each test.Streptomycin sulfate 400 mg IM daily is ordered for a child weighing 77lbs. The recommended dosage is 20-40 mg/kg/day once daily. A 1 gram vial of streptomycin sulfate is available in powdered form with the following instructions: Dilution with 1.8 mL of sterile water will yield 400mg per mL. If safe, how many mLs will you give?
- Explain the chemical basis (reaction) of Millon’s test. (Generic reaction and explanation) What is the difference between Millon's test and Biuret test?(minimum 5)Multiple choice (Refer to picture) Which of the statements is NOT TRUE about the sample in Salkowski test? * Lower layer becomes red with a green fluorescence A molecule of cholesterol reacts with sulfuric acid to yield bi-cholestadien There should be an excess sulfuric acid to convert bi-cholestadien to bisulfonic acid of bi-cholestadien. It is best to shake the solution for a more accurate result.Millon-Nasse Test Mix 1 mL of the sample and 5 drops of Millon-Nasse reagent. Boil the content gently for 30 seconds. Cool in water. Add 2 drops of freshly prepared 1% NaNO2 and warm gently. Observe the color of the precipitate and/or the solution. Question 1. Will all amino acids and proteins give a positive reaction to this test?Question 2. What causes the color of the solution or precipitate?