a) Four solutions were made up; one containing glucose, one containing starch, one containing amylase (a starch digesting enzyme) and one containing sucrose. Unfortunately, the were not labelled, except as solutions A, B, C and D. The following tests were carried out to identify the solutions All solutions were tested with Biuret reagent

Q: Which of the different carbohydrate tests would give a positive result for maltose? Describe the…

A: Carbohydrates tests are chemical tests performed to detect the presence of carbohydrates. They can…

Q: A 100 mL solution of 0.1 M amino acid (AA) at pH 1.0 was titrated with 1.0 M NaOH solution. The pH…

A: Amino acids are composed of a central chiral carbon, hydrogen, an alpha-carboxylic group, an…

Q: Which of the following amino acid can be particularly detected with test using NaOH and lead acetate…

A: Biological macromolecules are those that are required for the survival for the growth and survival…

Q: A four-year-old boy was noted by the parents to have darkening of the urine to an almost black color…

A: The metabolic activity of the body is regulated by the different biomolecules. In a metabolic…

Q: Why is hydrolysis of sucrose also known as specific sucrose test?

A: Hydrolysis is a chemical reaction where a molecule of water ruptures one or more chemical bonds. The…

Q: A carbohydrate sample reacts positively with all test reagents except for Lugol's. The sample could…

A: The sample could be possibly Sucrose.

Q: How is the COD Values be affected in the presence of the following contaminants in your sample?…

A: COD value means chemical oxygen demand. The COD value indicates  the amount of oxygen which is…

Q: Choline test procedure (chemical reagents added), positive results/observations, and positive for…

A: Choline is an essential nutrient for humans and animals. Choline occurs in the form of ions that…

Q: Why is there a need to filter the alkaline solution after adding the Barium chloride solution?

A: In an aqueous solution, barium chloride acts as a simple salt.  However when dissolved in water, it…

Q: What results are expected in the Molisch's test and what is the test for? What kinds of…

A: Carbohydrates: a. Carbohydrates is the most abundant organic molecule found in nature. b. It…

Q: A positive test for the presence of sugar is indicated by which colors?

A: The test that is used to identify the presence of simple sugars in a compound or solution is known…

Q: Give and explain the principles of the following tests for lipids: Spot Test Acrolein Test Test for…

A: Your question has multiple subparts. I will answer 1st three of the subparts, as per the guidelines.…

Q: Why do the results for the confirmed test represent  faecal coliform in the analysis of water using…

A: MPN is Most probable number. It is commonly applied for testing the quality of water.

Q: Why did the blank used in experimental procedures contain substrate, buffer and water?

A: A blank or blank determination is an analysis without a sample (Enzyme). Any enzyme assay requires a…

Q: How to prepare %25 100 ml Glucose solution?

A: Dextrose solution, also known as intravenous sugar solution, is a combination of dextrose (glucose)…

Q: Give at least two (2) chemical tests for amino acids/ proteins other than what were performed in…

A: There are several other tests to determine properties of proteins and amino acids present in a…

Q: 5. Write the equation involved in the following tests? + |Molisch test Mucic acid test Bials-orcinol…

A: Carbohydrates, lipids, protein, nucleic acids are the four classes of macromolecules. Carbohydrates…

Q: You have been assigned to your first comatose patient, and you notice 0.12% chlorhexidine gluconate…

A: Chlorhexidine gluconate solution: Chlorhexidine gluconate is used as oral rinse to prevent…

Q: What is the fluid thioglycollate medium? Please explain the testing and its results and the…

A: Microbiology laboratory uses various kinds of culture media to identify the biochemical…

Q: Edman's reagent is

A: Proteins are polymer of alpha amino acids. There are 20 standard amino acid found in protein.…

Q: DESCRIBE THE RESULTS OF THE REDUCTION TEST FOR SUGARS USING THE FOLLOWING TEST MOORE’S TEST SUGAR…

A: Carbohydrates are one of the essential macronutrients for our body and form the major component of a…

Q: A solution was subjected to series of test to identify what carbohydrate/s is/are present. Results…

A: A positive (violet ring between layers) Molich test indicate the sample contains carbohydrates A…

Q: The six tests for the detection of functional groups in amino acids and proteins. TEST REAGENTS…

A: test REAGENTS POSITIVE RESULT POSITIVE INDICATION NINHYDRIN NINHYDRIN(indane-1,2,3-trione hydrate)…

Q: a sample that contains a carbohydrate delivers a negative starch iodine test. what does this result…

A: Introduction:  Carbohydrates are polyhydroxy aldehydes or polyhydroxy ketones with a molecular…

Q: Will starch + amylase be positive or negative for the Iodine Test?

A: Carbohydrates are the organic molecules that are the primary source of energy for our bodies. They…

Q: Will the given lipid test positive in the Ninhydrin test?

A: Ninhydrin test is used to check whether a given sample contains amines or alpha-amino acids. The…

Q: What kinds of carbohydrates are identified by the iodine test?

A: Biomolecules have different chemical, physical properties. The difference in their chemical and…

Q: what is the practical application of milk test of aldehydes?

A: Milk powder is an important product for both direct consumption and as a food ingredient. The milk…

Q: What amino acids are present on the unknown sample based on the results below? Test

A: Ninhydrin Test is used to test the presence of ammonia, amines or alpha amino acids or primary…

Q: Why sucrose gives negative Benedict test?

A: Benedict's reagent is a chemical reagent which is a mixture of sodium carbonate, sodium citrate, and…

Q: A polysaccharide conposed of entirely fructose units is inulin. Which carbohydrates test should be…

A: Inulin is a homopolysaccharide, which is composed of fructose units. Qualitative tests for…

Q: need to dissolve cholesterol in Chloroform in the Liebermann-Burchard Test

A: The reaction of acetic anhydride in chloroform with unsaturated steroids (e.g. cholesterol) in the…

Q: Fructose, sucrose, lactose, xylose, and glucose were tested using Benedict's, Barfoed's, Bial's, and…

A: Carbohydrates are the organic compounds and is the main source of energy for the body. They occur in…

Q: What are the purpose of the sample containing albumin, glucose/fructose and boiled starxh solution…

A: A chemical reaction is a process that converts one or more substances into another substance.…

Q: Will disaccharides and polysaccharides give a positive result for Molisch test?

A: Disaccharides: Di means two which means it is a double sugar. It is a sweet white crystalline solid…

Q: This test will differentiate between aromatic amino acids with an acitivated ring from other amino…

A: We'll answer the first question since the exact one wasn't specified.please submit a new question…

Q: What is the detection principle of iodine test for starch

A: The iodine test is a quantitative analysis of carbohydrates to distinguish polysaccharides from…

Q: Answer the following questions (not more than 5 sentences/question).  Discuss the correct…

A: Qualitative analysis is the process of identification and detection of elements or groups of…

Q: barite mineral is included in the formation of

A: Clay soil is soil that is comprised of fine mineral particles and some organic material.

Q: An unknown carbohydrate gave a brick red precipitate when tested with Fehling’s reagent,   turned…

A: Carbohydrates can be defined as polyhydroxy aldehydes/ketones. For the classification of…

Q: If you mix heated pepsu) enzyme to abont 39 C with allbunin, then add biuret reagent, the expected…

A: Biuret test is a colorimetric method used to carryout in laboratory to determine the protein…

Q: Are Xanthoproteic and MillonNasse tests satisfactory for use in the urinary examination for protein?…

A: The pH of urine varies from 5.5 to 7.5. If the diet is rich in proteins, sulfuric and phosphoric…

Q: how would you prepare 600 mL of a 20% strach solution beginning with a 50% stock starch solution?…

A: For calculation of stock solution, the formula used is M1V1 = M2V2 Where the M and V refer to the…

Q: Why do we need to place the lipid samples under direct heat after adding ethanol in a solubility…

A: The solubility test determines the presence of all lipids as a preliminary test.

Q: A solution of an unknown carbohydrate gave the following optical readings when analyzed by a…

A: A sample mean refers to an average set of data. To calculate the sample mean of a given dataset the…

Q: An unknown sample was titrated with CH3COOH. After making the titration curve, no steep change was…

A: CH3COOH is a weak acid hence it will not dissociate completely in the aqueous solution to form…

Q: A carbohydrate sample reacts positively with all test reagents except for Lugol's. The sample could…

A: Carbohydrates: a. It is the most abundant organic compound present in nature and consists of only…

Q: You have been assigned to your first comatose patient, and you notice 0.12% chlorhexidine gluconate…

A: Introduction:- Patients who are admitted to hospital with a prolonged stay in hospital are at an…

Q: How many grams of glucose would you need to make 500 mL of an 8% solution?

A: The concentration of the solution is determined by calculating the amount of solute dissolved in a…

Substance Abuse

Substance abuse refers to the use of illegal drugs in excessive quantities, as well as the misuse of legal substances such as prescription or over-the-counter pharmaceuticals or alcohol for purposes other than those intended. Drug addiction, also known as substance use disorder, is a disease that affects the brain and behavior of a person. It leads to a failure to control the use of any drug or prescription, legal or illegal.