What are some advantages and disadvantages of using blood agar vs. the Staph-Tex test to differentiate between S. aureus and S. epidermidis?

Q: Between Bacillus megaterium, Bacillus sphaericus, and Bacillus subtilis, which are positve for…

A: MSA or Mannitol Salt Agar is a differential and selective medium that encourages the growth of some…

Q: You are interested in obtaining Staphylococcus aureus for a study investigating the prevalence of…

A: S.Aureus is the most common cause of abscesses, furuncles, and cellulitis in the skin and soft…

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: Describe the differential property of blood agar for the isolation and identification of…

A: Blood agar is the medium containing general nutrients and 5% sheep blood. Staphylococci are…

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: What is this organism? And what other test could be done to confirm it's identification? 1.Gram…

A: Introduction : Chris Grams classified bacteria into two types according to how they appeared under…

Q: In a COVID test, why is it necessary to swab all the way at the back of the nose and throat

A: The COVID-19 pandemic has currently affected the whole world and has claimed a huge number of lives.…

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: A. Explain how the Snyder agar medium is both a selective and a differential medium. B. How is the…

A: The formation of dental caries is thought to be aided by a range of microorganisms. Lactobacillus…

Q: How do we prepare smear

A: The preparation of a smear is required for many laboratory procedures, including the Gram-stain, for…

Q: What are the advantages and disadvantages of the viable plate count method?

A: Microbiology is the branch of science that studies microscopic organisms. As microorganisms are not…

Q: Explain why the media where the Staphylococcus aureus is plated has turned yellow but the media…

A: Mannitol Salt Agar (MSA) is a differential and selective medium. A member of the staphylococcus…

Q: Is bile esculin test a efficient test for unknown intestinal bacteria?

A: In the intestine, only those bacteria that are not killed by the bile survive. The normal bacteria…

Q: What is the purpose of Xanthoproteic test and explain the observation or rection for albumin and…

A: Xanthoproteic test is a type of colour test to detect a specific functional group, structural…

Q: What is the principle behind invertase test

A: Invertase was an enzyme that hydrolyses the disaccharide sucrose into monosaccharides glucose and…

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: Why is the looping out method preferable for sputum specimen for acid fast smears?

A: Sputum is the mixture of respiratory fluid and saliva, sputum analysis or sputum test is performed…

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 is the result of Staphylococcus epidermidis in the TSI agar test?

A: Bacteria are microorganism that most commonly occur in the soil, air, water and in adverse…

Q: what are the important principle in polyphenoloxidase test

A: Polyphenols, as the name sounds is a large family of organic compounds that are characterized by…

Q: Give the full form of ELISA.which disease can be detected using it?Discuss the principle underlying…

A: It is a diagnostic tool for detecting substance like antigen.The rDNA technology has enabled the…

Q: I AM TRYING TO IDENTIFY THIS UNKNOWN.  ***IMAGE 1 HAS TWO PICTURE OF CATALASE TEST AND BLOOD AGAR…

A: Results from the images. Oxidase- positive Bacitracin and novobiocin - shows susceptibility…

Q: Is UV treament more or less effective than disinfection when used against Saphylococcus aureus?

A: Saphylococcus aureus is a gram-positive bacterium that is found in the human nose, skin, and…

Q: How does one can differentiate S. aureus from S. saprophyticus

A: Staphylococcal bacteria are spherical (cocci) shaped gram-positive bacteria that belong to the order…

Q: How does the agar dilution method differ from streaking toobtain isolated colonies?

A: Both these are methods to culture microorganisms and have their respective pro and cons as mentioned…

Q: Why is serum beta glucan testing used for diagnosing an invasive candidiasis?

A: Yeast a type of fungus. Candida is a genus of yeast. When any member of the genus Candida causes a…

Q: What are the different methods of sensitivity testing? Discuss briefly

A: Sensitivity testing describes the effectiveness of antibiotics, antifungals, anti-inflammatories,…

Q: Why is Muller Hinton Agar (MHA) ideal for antibiotic susceptibility testing

A: MHA(Mueller Hinton Agar) was developed by Mueller and Hinton in 1941. It is used to test antibiotic…

Q: e.2. What is the amount of each component needed, given the following media composition per liter of…

A: Introduction Lysogeny Broth (LB) Is A Nutrient-dense Media Predominantly Used For Bacterial Growth.…

Q: What is the definition of the term Resistant?  How do you detect that your microorganism is…

A: Resistant- ability of bacteria to endure the effects of a damaging chemical substance is known as…

Microbial Isolation

Isolation of the microorganisms in microbiology is the process of developing a pure culture by separating one species of microbe from a mixture of many other species. A pure culture is a culture that contains only one species of microbe.