Enterotube: Which group of bacteria are detected using this test? Which specific chemical tests are hallmark signs of this bacterial group?

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: Brown algal natural products have been used as chemotaxonomic markers (true or false)

A: Chemotaxonomy is the research of microbial cell biochemical variation and the use of chemical…

Q: 2. Diagram (draw) how biofilms forms on the surface of an indwelling device. Explain how biofilms…

A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want…

Q: Between Enterobacter aerogenes and Enterobacter cloacae, which are positive or negative for methyl…

A: methyl red and Voges Proskauer tests both are biochemical tests for identifying bacteria in…

Q: Differentiate among the following factors of bacterial intoxification and bacterial infection…

A: Foodborne infection is originated by the ingestion of food including living bacteria which grow and…

Q: : 1. Diagram (draw) the Gram positive cell wall. Be sure to label specific components of the…

A: The cell wall of gram-positive bacteria is composed of thick layers peptidoglycan. The cell wall of…

Q: Microscopic agglutination test is the gold standard for sero-diagnosis of leptospirosis, what is its…

A: Leptospirosis is a disease caused by a zoonotic organism that belongs to the genus Leptospira.…

Q: What is the mechanism of the bile esculin test?

A: The Bile-esculin test is a test that is used to differentiate enterococci and streptococci-group D…

Q: List the four cellular agents of bacterium that most antimicrobial agents such as antibiotics…

A: Antibiotics are the secondary metabolites that are secreted by a group of microbes that declines the…

Q: Describe the microscopic appearance of encapsulated Streptococcus if stained with safranin and…

A: Streptococcus is a long chain of coccus bacteria that is a gram positive bacteria and is thus has a…

Q: discuss the camp test and beta hemolysis in L. monocytogenes. Give the principles, procedures,…

A: Listeria monocytogenes is a gram positive, motile and rod shaped bacteria. They are facultative…

Q: What are the advantages of staining fecal smears with permanent stains

A: Permanent stain is a stain that lasts for long time without fading and it also does not change the…

Q: What is the main purpose of haemolytic tests? What is the main substance responsible for this…

A: Pathogenic microrganism are the microbes that has capability to cause disease and infection inside…

Q: What does MPN stand for? Why do you think dilutions are needed to use in the MPN test? -How do you…

A: Solution - MPN =Maximum Probable Number  Definition- Most Probable Number  (MPN) may be a technique…

Q: Show a diagram of beta-hemolysis and alpha-hemolysis by different bacteria on blood agar and explain…

A: Hemolysis is the process by which red blood cells in the blood are broken down by chemicals or by…

Q: Match the expected result (purple, red, or colorless) to the following descriptions of Gram-stained…

A: Step 1 Gram-staining is a procedure of staining than can be used to differentiate between bacterial…

Q: What is the specific anti microbial mechanism of hydrogen peroxide, 10% bleach, 70% isopropanol?

A: The anti-microbial mechanisms vary from substance to substance.  For example, they may inhibit the…

Q: Name of the microorganism responsible for the symptoms of toxic shock syndrome resulting from food…

A: Toxic shock syndrome is a rare, potentially fatal condition caused by toxins that produced by…

Q: Why are antimicrobials only directly effective against bacteria and what is the control on the…

A: Antimicrobials are agents that either kill microorganisms (microbicidal) or stop their growth…

Q: Name two tests that are useful for the differentiation of pneumococci and oral viridans…

A: Pneumococci or Streptococcus pneumonia is a spherical, Gram-positive bacterium. They are generally…

Q: Give typing answer with explanation and conclusion

A: The theory behind specimen contamination is based on the fundamental principles of laboratory…

Q: which bacteria is Rods with parallel sides and rounded ends, gram negative, non motile and negative…

A: Bacteria classified according to their shape ate of following types: Spherical bacteria known as…

Q: Why do you need to take samples from the bloody or mucoid portion of the entire stool?

A: Macroscopic examination is a diagnostic technique used in medicine, biology, and other scientific…

Q: According to the hemolysis results, how does Bacillus cereus differ from B. subtilis?

A: Given: To find how does Bacillus cereus differ from B. subtilis.

Q: . Would the presence of growth on the "throat" blood agar plate indicate a case of strep throat?…

A: A throat swab culture, or throat culture is a test used to diagnose bacterial infections in the…

Q: Describe the mechanism of pathogenicity of the whooping cough bacteria.

A: Whooping cough is common name of pertussis which is caused by Bordetella pertussis.It is a very…

Q: What is the most common gram-negative bacteria that can cause UTI in adults (Note: Assume that the…

A: A urinary tract infection, often known as a UTI, is an infection that affects any portion of the…

Q: Calculate the number of bacteria (CFU/ml) in each serum and saline sample.  What was the purpose of…

A: Calculating CFU/ml in Serum and Saline SamplesTo calculate the number of colony-forming units per…

Q: What is the best lab test to perform for a unknown intestinal bacteria?

A: Bacteria found in the intestine or colon region of the digestive tract since the pH of the stomach…

Q: Is colistin Naladixic acid agar selective and/or differential? Explain

A: C-CNA (Columbia-CNA Agar) is a form of selective media that favours Gram-positive bacteria.

Q: If your hospital laboratory isolates streptococcus pneumoniae from four patients on the same day,…

A: In the context of clinical microbiology, the isolation of Streptococcus pneumoniae from multiple…

Q: Discuss Voges Proskauer test for listeria monocytogenes, give the principles, reagents used if…

A: Principle of Voges-Proskauer test The Voges-Proskauer (VP) test is used to examine whether a…

Q: Differentiate between presumptive and confirmatory tests. How can you determine the presence of…

A: Forensic science deals with the collection and analysis of the various biological samples that are…

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

A: Bile-esculin test is widely used to differentiate Enterococci and Non-enterococcus group D…

Q: Give typing answer with explanation and conclusion Write briefly of the mode of transmission,…

A: Understanding the mechanisms of transmission, clinical symptoms, and diagnostic methods associated…

Q: Urease: 1. Explain the incubation conditions 2. Explain the reagents being added 3. Explain the…

A: 1. Incubation ConditionsTemperature: The test is usually incubated at 35-37°C, which is the optimal…

Q: selective agar media for Vibrio cholerae?

A: Vibrio cholerae is a facultative anaerobe. It is a comma-shaped bacteria. It is a species of…

Q: Is the pH level of antibacterial soap higher, lower, or the same as H. influenzae, S. aureus and S.…

A: Antibacterial soap These are the soaps which have chemical ingredients that have the ability to…

Q: Name the type of microbe, Gram stain, shape, and type of virus for Mycobacterium Tuberculosis.

A: Mycobacterium tuberculosis (M. tb) is the causative agent of tuberculosis.

Q: what is the Normal Values for the direcet fecal smear test?

A: Direct fecal smears are examined in order to identify presence of motile parasites (trophozoite…

Q: Direct contact with pathogenic microorganisms is the most common cause of hospital-acquired…

A: Hospital-acquired infection These are the type of infections that are acquired in a hospital and the…