4. What are zwitterions? Do they interfere with the different color reaction tests?

Q: What is the use of heat in Seliwanoff’s, Benedict’s and Barfoed’s tests?

A: Carbohydrates are macromolecules comprised of carbon, hydrogen, oxygen. They are also known as…

Q: 2. Looking at the structures of the 4 different drugs below, what do they all have in common, and…

A: Q2. The above structures reveal the presence of aromatic rings. They are all aromatic compounds. The…

Q: Which of the molecules below exhibits the following UV/Vis absorption spectrum? Assign the peaks in…

A: The characterization of polymer is an essential step of polymer synthesis technology. After the…

Q: Why is the 70:30 hexane:acetone is the more effective separation of pigments in spinach than the…

A: Plant pigments from spinach leaves when separated using column chromatography are separated between…

Q: 13.The capacity of an optical system to distinguish or separate two adjacentobjects or points from…

A: Microscopes are used to visualize objects that are not visible to the naked eye. In microbiology,…

Q: 4) Why do you use immersion oil with 100X objective lens? 5) What is the total magnification of a…

A: Microscopes are important and essential tools in microbiology and cell biology. A simple microscope…

Q: 4. Describe the Benedict's test. What are the materials and chemicals needed? What is the procedure…

A: Benedict's test is a chemical method for determining whether or not an analyte contains reducing…

Q: how did the stain affect what you observed in onion cells?

A: Answer: Staining :  It is the technique that use dyes or stains to colour the various cells in order…

Q: 1) Did all the test materials turn violet? b. no a. yes Why or why not?

A: Biuret Test is a biochemical test that is widely used to determine the presence of protein in a test…

Q: 2- Why must not the precipitate in iron determination be ignited at too high a temperature?

A: Precipitate of iron is iron (lll) hydroxide.  They formed by in a test tube where iron is present…

Q: 2. What is the importance of performing negative staining?

A: Introduction :- Generally used at the microscopic level, staining is a technique for enhancing…

Q: 3. Explain the term Refractive Index (n) of liquids, and describe how the values may be measured…

A: Refractive index It determines how much light is bent, or refracted when entering a material. When…

Q: 3. What are the differences between penicillin G and penicillin V? If you're treating a patient with…

A: Drug calculation is a important aspect in calculating the dose based on the BMI ,BSA ,age and body…

Q: 3. Which term refers to the clarity of the image? (a) magnification, (b) resolution, contrast

A: Answer: Microscopy is the method of using microscopes to see the microorganisms enlarge. Microscope…

Q: What is the role of chloride in biochemical processes of the body? 2.  What are the other test for…

A: Body has different electrolytes. Chloride being one of the most important electrolytes in the blood.…

Q: Do zwitterions interfere with the different color reaction tests?

A: A molecule with a charge of zero and at least two functional groups, one positive and the other…

Q: 3. From the ingredient lists below, circle the interfering agents used in each crystalline candy…

A: Candies can be categorized into crystalline and noncrystalline candies based on key interfering…

Q: . In preparing a slide, what is the significance of heating the sample after it is stained?

A: 2.Fixation is often achieved either by heating (heat fixing) or chemically treating the specimen. In…

Q: . What is the purpose of fixation in cytological staining?

A: Tissue fixation is a critical step in the preparation of histological sections for staining…

Q: 1. What is the chemical basis for a positive test in Molisch test? 2. What is the chemical basis for…

A: MOLISCH TEST:- It is a chemical test that is used to detect carbohydrates in a given sample.…

Q: 2. Describes the Molisch test. What are the materials and chemicals needed? What is the procedure…

A: Carbohydrates are the most abundant class of organic compounds found in living organisms. They are…

Q: What are the possible problems or limitations of the standard plating techniques when used for the…

A: hamburgers are one of the easiest foods to eat while on the go. No matter what time it is whether…

Q: 1. a) What are Romanowsky stains? Name four of these. b: What are the components of a Romanowsky…

A: 1) a. Romanowsky staining is a prototypical staining technique which is also known as…

Q: Why is 70% ethanol rather than pure ethanol preferred for use as an antiseptic agent?

A: Disinfection is referred to as cleaning a surface with a chemical compound so as to destroy…

Q: 4. Which of the following phases of dental amalgam has minimum strength? a) Gamma 1, b) Gamma 2, c)…

A: Mercury reacts with numerous metals to form an amalgam, which is extensively employed in dental…

Q: 1. What total magnification will be achieved if the 10× eyepiece and the 10× objective are…

A: A microscope is an instrument that makes an enlarged image of a small object. There are different…

Q: 4. Will both DNA and RNA give a positive test with nitric acid? Why?

A: DNA is a biological polymer of monomer units of nucleotides. DNA nucleotides are made up of pentose…

Q: 5. The Figure below shows two images A and B. A 4 B Which image has better image quality and why?…

A: Digital radiography (DR) is a high level type of x-beam investigation which delivers a computerized…

Q: What is the usual stain used for staining a sputum smear?

A: Since you have asked multiple questions, we will answer only first question for you. In order to get…

Q: 2) Assume that you made an error during your staining procedure. You used safranin as the primary…

A: Majority of the cells that are being observed under the microscope lacks color and contrast in their…

Q: 1. How is ultraviolet light used in forensic photography? 2. How is infrared light used in forensic…

A: According to the question, we have to discuss the procedure of how ultraviolet light and infrared…

Q: 5. Why is it necessary for the specimen to be thin when observed under the microscope? A. so that…

A: Since there are multiple question in this particular question, I will answer the first one for you.…

Q: 2. Describes the Molisch test. What does the Molisch test detect?

A: Carbohydrates are one among different biomolecules, and the most abundant biomolecule. Carbohydrates…

Q: 6. What is meant by a control plate? 7. Which two are control plates? - 205- Al 1d X -

A: A control plate contains same medium (point) as the culture medium. It is used for comparing (guide)…

Q: Why is it necessary to let bacterial smears completely air dry before heat fixing?

A: To view a bacterial cell through a light microscope, its smear must be attached to a slide and then…

Q: 1-How is a total cholesterol test different from a lipid panel?

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 1. How is magnification measured? (e.g., what does "10x" mean?)

A: Microscope, an equipment that magnifies images of small things, allowing the viewer to examine and…

Q: 1. Explain the effectiveness of 70% alcohol as antiseptic compared to the action of  40% and 95%…

A: Since you have posted more than one question, we will answer first one for you. If want answer for…

Q: Explain acid fast staining?

A: Introduction  There are several methods to differentiate bacteria into different groups, staining…

Q: 2. What is negative staining and how does it work?

A: As bacteria contains clear protoplasmic matter, differing but slightly in the index of refraction…

Q: 5. You receive a bacterial culture in the lab and your job is to figure out information which will…

A: Answer One of the most important staining methods used to differentiate between Gram Positiva and…

Q: 1. Why does fresh milk can form a film and sour milk cannot?

A: Milk film refers the thin sticky layer on the top of the milk forms due to the boiling of milk. It…

Q: 3 solvents separation are popularly used for the of pigments in spinach. These are hexane, 70:30…

A: Plant pigments from spinach leaves when separated using column chromatography are separated between…

Q: Which of the following can you do to prevent foodborne illnesses? A. Clean your hands and produce B.…

A: To prevent food borne illeness -  Clean hands properly  Separate meat and non meat during…

Q: 4. The purpose of conditioning agent on shampoo is A. To bring moisture to nail C. To bring moisture…

A: Cosmetic products are meant to provide care and cleaning and care and for beauty enhancement.

Q: .) What is the purpose of acid-fast staining? What information can you gain from this procedure?…

A: Acid fasr staining is the differential staining method which was first developed by Ziehl and…

Q: 10. Why is oil used under the oil immersion lens instead of water? (1 Point) O oil is thicker than…

A: A microscope can be referred to as a magnifying object playing a crucial role in providing medium to…