What is the purpose of Xanthoproteic test and explain the observation or rection for albumin and gelatin in terms of principle of xanthoproteic test.

Q: Why is skin contamination such a big problem in blood culture test?

A: Contamination can arise during the preparation of the venipuncture or catheter insertion site, the…

Q: When viewing the capsule stain, why do the capsules appear colorless? Explain

A: According to guidelines we have to answer the first question only. so please kindly post the…

Q: Is  Bacillus cereus negative or positive for methyl red, and  Voges-Proskauer tests?

A: The methyl red (MR) test detects whether bacteria can ferment the glucose or not. It detects the…

Q: What is the color results of tyrosine,phenylalanine,alanine in millon test?

A: Million's test is a protein qualitative test: Principle: Million's test detect tyrosine as its the…

Q: What test requires inoculation of rabbit serum?

A: The formation of  clot in the plasma indicates coagulase production. Coagulase is a protein enzymes…

Q: 1. What are the sources, structural descriptions, and biological functions of gelatin, casein, and…

A: Protein is an organic nitrogenous macromolecule that is required for human health. In the human…

Q: Why does the structure below give a negative result to the Xanthoproteic test even though it…

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

Q: Is it possible for nonprotein compounds to test positive for the xanthoproteic test? What are these…

A: Proteins are made up of number of amino acids. Amino acids are organic compounds with two functional…

Q: What would be the expected out come of a phenol red test If the bacteria is a pathogenic intestinal…

A: Phenol Red Broth is a general-purpose differential test medium typically used to differentiate…

Q: You have isolated a Gram positive cocci from a throat culture. You have determined that it is…

A: Gram-positive bacteria have a single cell wall anchored to the cell membrane by lipoteichoic…

Q: What is the chemical basis of the Xanthoproteic Test? Give the chemical reaction involved.

A: Protein is a nitrogenous organic macromolecule that is essential to human health. It is responsible…

Q: What is the difference between Benedict and Barfoid's test?

A: Both Barfoeds and Benedict’s solution are made from same ingredients. But their capabilities are…

Q: FNA

A: The above test is called the COAGULASE test. The coagulase test is a experiment to determine whether…

Q: How will you prevent the occurrence of the bacteria present in the Rapid Strep A Test?

A: Answer:  Rapid Strep A Test (Rapid strep test) is a test used to identify the presence of Strep A…

Q: Between Proteus mirabilis and Proteus vulgaris which are positive or negative for ornithine…

A: ornithine decarboxylase test is a special kind of biochemical test that helps to determine whether…

Q: Presence of this specific bacterial surface polymer is usually demonstrated as a clear area when…

A: The polymeric surface covering in bacterial cells is called as capsule, this covering is made up of…

Q: What is the color result of 1% solution of casein, Albumin, Gelatin in ninhydrin test? Include…

A: Ninhydrin test: Chemical test to detect presence of ammonia, primary/secondary amines, or amino…

Q: Describe the appearance of the  protein solutions in each of the tubes after addition of the…

A: Proteins are complex nitrogen-containing organic molecules that involve all aspects of the live…

Q: What are the different test of proteins and amino acids, reagents used, color reaction

A: Protein is a biomolecule, there are so many tests to identify the presence of it.

Q: What is the principle involved in the Acrolein test? What is its purpose?

A: Qualitative tests are the chemical or physical tests involved in identification of certain…

Q: How is the precipitation of proteins by alcohol applied in the fixing of tissues for histological…

A: Histology is generally the study of tissue types for identification and diagnosis purposes for cell…

Q: what are the important principle in invertase test?

A: To determine enzymatic activity, the amount of substrate remaining or the amount of product created…

Q: What is the color result of 1% soultion of casein,albumin ang gelatin in biuret test? Results and…

A: Biuret test detects proteins and peptide having at least two peptide bond. It is used as a general…

Q: The table below summarizes the results for Xanthoproteic test. Provide the correct remarks from the…

A: Proteins are big, complex molecules that serve a number of important tasks in the human body. They…

Q: What is the difference between a Hemin test and a Benzidine test?

A: Hemoglobin is a blood protein that is responsible for oxygen transport in the tissues. Hemoglobin…

Q: How do eosin-methylene blue (EMB) agar plates work? What organism(s) are they designed to detect?…

A: Several tests are performed in the laboratory in order to detect several bacterial agents as well as…

Q: Citrate test Explain what is the color of the medium after incubation? Green or blue

A: To correctly identify a microbial species, we make use of various biochemical assays that have…

Q: in most probably number (MPN) testing what media is used for confirming test and what does a…

A: The Most Probable Number (MPN) is a method for estimating the concentration of viable microorganisms…

Q: A solution of flycine and a solution of albumin were prepared with the same concentration (g/L). One…

A: The ninhydrin test is a chemical that is used to determine the presence of alpha amino groups in the…

Q: What test can be performed to differentiate between group A and group C streptococci?

A: Bacteria are a group of prokaryotic microscopic single celled organisms. They live in diverse…

Q: What are some advantages and disadvantages of using blood agar vs. the Staph-Tex test to…

A: Hi, Thanks For Your Question.  Answer : Advantages Of Using Blood Agar To Differentiate Between S.…

Q: purpose of using serum in culture media

A: A culture media is a media made in the lab, that is curated to facilitate the culture and growth of…

Q: What is the color result of tryptophan,tyrosine and phenylalanine in xanthoproteic test? Results and…

A: Xanthoproteic test was a specific test that was done to detect the presence of aromatic amino acids…

Q: How else could you test for purity of the phycocyanin sample? Briefly outline the steps to be taken

A: C-phycocyanin is a promising naturally/pharmaceutical agent with more well-documented…

Q: What test can help you differentiate staphylococci from streptococci? What reagent or media would be…

A: Both are gram positive bacteria.

Q: What is the purpose of Durham test ?

A: In the carbohydrate fermentation test, we determine whether the bacteria are able to ferment a…

Q: Between Bacillus megaterium, Bacillus sphaericus, and Bacillus subtilis which are positive or…

A: The VP test detects organisms that utilize the butylene glycol pathway and produce acetoin. It…

Q: in the isolation of alkaloid,in the early stages of acid or base required conditions. explain the…

A: Alkaloids are secondary metabolites derived through shikimic acid pathway. They are nitrogen…

Q: Write down the materials, reagents, Principle, procedure and results for Mann’s methyl blue-eosin…

A: Polychromatic solution of Methyl Blue and Eosin Y stains (modified Mann's solution) is  used for…

Q: What would be the expected out come of a gram staining test If the bacteria is a pathogenic…

A: Gram staining is a common technique used to differentiate two large groups of bacteria based on…

Q: what are the Amino Acids that test positive for Ninhydrin test? what is the principle of detection?

A: All the alpha amino acids test positive for ninhydrin test.

Q: what are the biochemecal test , serogical test, molecular test or other test ( if any ) you can use…

A: Staphylococcus aureus is a Gram-positive, round-shaped bacterium, and is a member of the microbiota…

Q: In the entrropluri tube system which test require the addition of reagents after the incubation time…

A: Entreropluri test system is a Enterobacteriaceae identifying system. It is use to identify some gram…

Q: which kind of sample gives positive result for Molish test?

A: It is a chemical test which is named after the botanist Hans Molisch.  This test involves the…

Q: What is the purpose of Biuret’s test? In biuret’s test, does the color in each test tube containing…

A: There are different biomolecules, including carbohydrates, protein, lipids, etc., are present. The…

Q: purpose of the Methyl Red and Voges-Proskauer Test. What makes each one unique and why?

A: The methyl red reagent is a solution that detects the acidic pH of the culture. Voges-proskauer test…

Q: Congo red is a red acidic stain and methylene blue is a l a bacterial smear with a mixture of eosin…

A: Eosin Methylene Blue (EMB) agar is both selective and differential culture medium. It is a selective…

Q: What is the purpose of using the streak plate method?

A: Solution-  Introduction -  Streak plate technique is used  for the isolation into a pure culture of…

Microbial Growth

The development of microbial growth is influenced by various natural conditions (both physical and synthetic) like pH, temperature, saltiness, gas focus (O2, CO2, and H2), nutrients, water action, and assimilation. Knowing the distinctive physical and chemical factors that influence the development and endurance of microbial growth in the climate will assist with reinforcing endeavors outfitted towards their control. These lines lessen or diminish their harmful impacts on humankind, creatures, and the climate.