Which test require a straight line inoculation? Choose all that apply. A) Bile esculinase B) NaCl C) DNA hydrolysis D) Hemolysin

Q: what is the procedure and materials you need to stain Staphylococcus aureus?

A: Staphylococcus aureus is a Gram-positive, round-shaped bacterium hat belongs to the Firmicutes and…

Q: What is the purpose of fixing a smear?

A: Smear- a smear is a thin layer of a sample such as bacterial cells or blood spread evenly on a glass…

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: Do you think UVC disinfection of N95 face masks is effective? Give two important considerations for…

A: At the time of Covid-19, N95 masks are currently considered critical supplies by the centers for…

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: Why and How is brick weathe resistant?

A: Bricks likewise score high corresponding to the climate, as they are made from natural materials…

Q: How does pasteurization affect the number of bacteria present in milk? What differences, if any,…

A: To control microbial growth or contamination there are a number of aseptic techniques developed that…

Q: What is the amount (mL) of pre-culture (108 cell/mL) necessary to inoculate (to add) in a 2-liter…

A: Culture media is a solid or semisolid substance used to support the growth of microorganisms. It is…

Q: What is the principle of Molisch test, Benedict test, Biuret test, Xanthoproteic test, Sudan test,…

A: The tests that are mentioned above are the tests used for identification of biomolecules like…

Q: What is the purpose of Thick smear? Purpose of Thin smear?

A: Blood smear:-Also known as peripheral blood smear. -Blood smear has many different uses ranging from…

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: If coliforms were present on a plated sample, would you know with certainty that the coliforms are…

A: Coliform microbes are characterized as rod-shaped, gram-negative, non-spore-forming, and…

Q: When bacteria from a throat swab are streaked on blood agar, why is the agar stabbed several times…

A: The initial identification of the streptococcal and enterococcal species is based on their hemolytic…

Q: Can the resazurin reduction test be used to determine whether a milk is properly pasteurized or…

A: Pasteurization is a process that helps in keeping the milk fresh and helps in avoiding the…

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: Which media can be used to isolate E. coli samples from contaminated lettuce?

A:

Q: can you draw the following on positive simple staining in 1000x objective? thank you.…

A: For the purpose of staining, dyes are selected based on their chemical properties and the specimen…

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: How can a suspect bacterium be fingerprinted?

A: DNA fingerprinting is a technique for detecting a high number of minisatellites in the genome at the…

Q: What other infections or conditions can be detected by an ELISA?

A: The Enzyme-Linked Immunosorbent Assay (ELISA) is a technique used to detect antibodies or infectious…

Q: In your own words, explain how you determine the susceptibility for tooth decay for individuals…

A: Snyder Test is a colorimetric test to detect susceptibility of dental caries. It is based on the…

Q: Is tripple sugar iron test a efficient test for unknown intestinal bacteria?

A: Triple sugar iron agar is a differential medium that contains lactose, sucrose, a small amount of…

Q: Is phenol red test a efficient test for unknown intestinal bacteria?

A: Fermentation of carbohydrates is the method used by microorganisms to produce energy. Phenol Red…

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: If the five-digit code that is tabulated cannot be found in the EnteroPluri-Test Codebook, what that…

A: Prokaryotes are the primitive organisms that were the first to develop and harness life on Earth.…

Q: Identify a biochemical test that can differentiate Enterobacter agglomerans from Enterobacter…

A: Enterobacter cloacae is a part of the normal gut flora of humans and usually, it is not considered a…

Q: what treatment can kill the positive result of staphylococcus aureus in a catalase method ?

A: If an organism produces catalase enzyme, then it is able to breakdown hydrogen peroxide into water…

Q: Can hand sanitizer kill bacteria?

A: Sanitizer is referred to as any substance or fluid that is used to prevent the spread of pathogens…

Q: In performing the Kirby-Bauer procedure in a clinical laboratory setting, why must the agar be a…

A: The Kirby Bauer antibiotic test, also known as the disc-diffusion test, employs an antibiotic disc…

Q: What is the purpose of the lab whereby you take a throat swab and identify the normal bacteria in…

A: A throat culture is a test that looks for germs that can cause an infection (such as bacteria or…

Q: What biochemical tests did we use to distinguish staphylococci from streptococci?

A: Staphylococcus and streptococcus both occur in cocci shape and both are gram positive organisms.…

Q: If you did the multiple-tube technique, list one advantage and one disadvantage of each method of…

A: Water from various sources obtained for routine testing were analyzed by Swedish standard methods…

Q: What is the procedure for methylene blue stain on e.coli?

A: Methylene Blue is a cationic stain, which binds to negatively charged parts of the cells, such as…

Q: In a Triple Sugar Iron test, what are the results and (what should they look like) for the bacteria:…

A: triple sugar ion test or TSI is a confirmatory as well as a differentiative biochemical test which…

Q: What can you expect to find in lab test based on the fact that the pathogen is an intestinal…

A: In a broadest and oldest sense, a pathogen is anything that can cause disease.  It can also be…

Q: in an indirect elisa procedure what enzyme is used?

A: Enzyme-linked immunosorbent assay (ELISA) is an assay technique used for detecting and quantifying…

Q: how to find out the test is differential or selective in the microbiology lab test?

A: Many kinds of medias are used in microbial study. Two types of media having similar inferred names…

Q: What is  bactericide exposure?

A: The term bactericide is related to bacteria. Bacteria are unicellular and prokaryotic organisms that…

Q: For what ELISA is used?

A: A wide range of serological tests are available to recognize the antigens or antibodies in the…

Q: The Xanthoproteic test involves what type of reaction?

A: The xanthoproteic reaction is the method that is used to detect a presence of the proteins soluble…

Q: how is the 0.5 McFarland standard prepared? What is the role of this standard in performing…

A: Antimicrobial susceptibility tests (AST) are microbial sensitivity tests that determine the…

Q: What is de-starching?

A: Biomolecules are organic molecules present in living organisms. Carbohydrate is one of the important…

Q: What are two possible reasons for choosing a bacteriostatic treatment over a bactericidal one? Name…

A: Q)What are two possible reasons for choosing a bacteriostatic treatment over a bactericidal one?…

Q: James inoculated a species of bacteria into KIA media and realized that it has a yellow butt and a…

A: Introduction KIA or the Kilger Iron Agar is a differential media that helps in distinguishing the…

Q: Is Staphylococcus epidermidis catalase positive or negative?

A: Staphylococcus epidermidis  Introduction:- Gram-positive bacteria Basically, it is harmless Present…

Q: Why are aseptic techniques implemented during inoculation?

A: Aseptic means without contamination and Inoculation means transfer of a bacterial sample onto a…

Q: How can you use Alamar Blue (Resazurin) to test whether the antimicrobial compound is bactericidal…

A: Visual methods of quality and quantity are readily found in biology and other field alike as they…

Q: Why do we use 'corrections' to the Creatinine clearance test?

A: Creatinine clear test is used to assess the kidney functions, The amount of the kidney that is…

Q: What single test differentiates Staphylococcus aureus from other species of staphylococci? What is…

A: Staphylococcus aureus is present on human skin and anterior nares along with other mucous membranes.…

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.