Biology Question

Q: Complete the table below visible result after Interpretation Chemical/reagent used (be specific)…

A: Introduction: Carbohydrates are the key source of energy used by living things and present as an…

Q: 1. lodine test for Starch 2. Benedict's test for Sugar 3. Biuret test for Proteins 4. Grease Spot…

A: Introduction The word "macro" means large, so macromolecules refer to large molecules that are…

Q: Five sweetener samples (labelled A to E) were tested by 97 individuals for the intensity of their…

A: A identify as Glucose.  B identify as Sucrose. C identify as Aspartame. D identify as Lactose. E…

Q: Describe how a solution of lactose would react toward these reagents. a. Benedict's b. Barfoed's

A: Lactose is a reducing disaccharide, derived from glucose and galactose linked through β-1→4…

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: 2. Biuret Test Color of 3% CuSO4 solution: Sample casein alanine albumin gelatin distilled water 3.…

A: Proteins are large molecules made up of amino acid residues linked via a peptide bond. Amino Acids…

Q: Four amino acid samples were subjected to a reverse-phase chromatography set up and yielded the…

A: Amino acids differ from each other on the basis of their side-chain properties. Some amino acids are…

Q: You purchase a premix flour containing iron (Fe), riboflavin, niacin, thiamin, and folate. For…

A: Atomic absorption spectrometry (AAS) is a simple, high-throughput, low-cost technique for analyzing…

Q: 3. The following results were obtained for the analysis of phenanthrene using isotopically labeled…

A: Biomolecules are the biological molecules that are present inside the living organisms. These…

Q: A. Detecting Dextrin in Starch 1. Iodine Test for Starch Describe any change that took place when…

A: The iodine test is the biochemical test used to detect the presence of starch. The starch reacting…

Q: KOH (aq) is added to a solution of Fe(NO3)3

A: This is the experiment of a precipitation reaction. When two solutions containing soluble salts are…

Q: Samples subjected to a test were given. Determine the reagent/material in the test.  Methyl…

A: Different chemical tests use different reagents and apparatus depending on their working principle.

Q: Match the test with a positive result  a. DNA test  b. Paper chromatography test c. Celllar…

A: Genetic material is nothing but the sequence of nucleic acids which is called as DNA. It contains…

Q: A. Experimental Results Table 1. Results of the Qualitative Tests of Unknown Lipid Samples Sample…

A: Copper Acetate test is used to distinguish oil and fatty acid. Copper acetate reagent does not react…

Q: Write a description of the physical characteristics of the isolated starch and glycogen. Provide the…

A: Physical characteristics are observable characteristics of a substance. Starch and glycogen are…

Q: MATERIALS: Potato Thermometer Test Tubes Bunsen burner and tripod set up Distilled water 0.1%…

A: Polyphenoloxidase ia a copper containing enzyme which catalyses the oxidation of di or tri hydroxy…

Q: MATCHING TYPE; Match A to B   A. Acrolein tesT                     Benedicts test…

A: biochemical test :  the test that are performed on samples of serum, solution, plasma , urine where…

Q: The following were obtained when testing for lipids. Discuss and conclude from the results obtained.

A: This activity is about ascertaining the presence of fat percentage in different food samples. The…

Q: Beef extract Peptone Sodium chloride Agar Distilled water 3.0 g 5.0 g 8.0 g 15.0 g 1000 mL

A: Nutrient agar is the most common general-purpose medium, thats supports the growth of the wide range…

Q: The number of cells in a culture is estimated based on turbidity. If the following standards are…

A: Turbidity is defined as the cloudiness of a liquid, the cloudiness is caused by a large sum of…

Q: How are lipids related or important to Grease-Spot test, Solubility Test, and Emulsification?…

A: Introduction The human body's ability to maintain homeostasis depends on fats and lipids. One or…

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: A student used 3.9g of liver sample and extracted all the lipids into a total of 1ml of CHCl3. 5…

A: It is a equation of straight line which represents relationship between the independent variable and…

Q: carbonydrate sample reacCts positively With all test reagents except for Lugol s. The sample could…

A: Carbohydrates: Carbohydrates or saccharides consist of carbon, hydrogen, and oxygen and it is the…

Q: A. List the five tests from your lab report and answer positive or negative for the following…

A:

Q: Olive oil 14% Soybean oil 15% Coconut oil 92% 77% 24% 61% |Saturated | Monounsaturated Polyunsatura…

A: Fatty acids are referred to as the building blocks of the fat that is stored in our body. It comes…

Q: Identify components of an unknown sample I An unknown liquid sample is tested for chemical…

A: Introduction: Starch is made up of long chains of simple sugars that are linked together. Amylose, 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: Which compounds will be separated by column chromatography in this lab?  Check all that apply.…

A: Column chromatography: Chromatography is the technique generally utilized for the separation or…

Q: 1. Conclude regarding the chemical composition of the formation of film in fresh milk.

A: Note: Please upload 2nd question separately, here i have given answer of question no. 1. Answer: 1.…

Q: How many grams of sodium chloride is required to render 80ml of 2% solution of ascorbic acid…

A: Answer: Given, E value                                              = 0.18Percent value…

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: Sample Observation Remarks Albumin A Casein B Glycine C Tyrosine D

A: Ninhydrin test is used to detect amino acids, peptides and proteins. Ninhydrin (triketohydrindene…

Q: xplain how to interpret the red cabbage's pigments when it is placed to different pH and in…

A: Red cabbage contains a water soluble pigment called anthocyanin that changes color when it is mixed…

Q: A dialysis bag containing a 3 M solution of the sugarfructose is placed in the following solutions.…

A: Dialysis bag is an artificial bag which acts as semi-permeable membrane that facilitates the flow of…

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

A: In biochemistry , a chemical test is performed in qualitative or quantitative procedure to identify…

Q: Four amino âĉid samples were subjected to a reverse-phase chromatography set up and yielded the…

A: Retention factors (Rf) values are important since they determine the differential separation of the…

Q: Which of the following tests gives bluish green product due to the presence of carbohydrates?*…

A: Carbohydrates are polyhydroxy aldehydes or polyhydroxy ketones. Monomers of carbohydrates i.e.,…

Q: In the third video, glucose, glycine and maltose are tested as samples with the Benedict's reagent.…

A: Introduction: The benedict is used for the detection of simple carbohydrates. It identifies the…

Q: Base on the data below, what type of lipid is being present in the sample?

A: A lipid is any of various organic compounds that are insoluble in water.. Some lipids are -- include…

Q: . Millions Test Color of Millon's reagent: Sample glutamic acid tyrosine casein albumin gelatin…

A: DISCLAIMER FOR MULTIPLE  Since you have asked multiple question, we will solve the first question…

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.