MSA is a selective medium and contains a higher salt concentration, a pH indicator and Mannitol sugar. Which of the following makes it selective m Staphylococci? OA Mannitol OB. PH indicator OC Agar O D. Salt

Q: Considering Escherichia coli and Shigella sonnei results on the MacConkey test, both bacteria are: O…

A: The MacConkey agar is a commonly used selective and differential medium in microbiology for the…

Q: Blood agar is a differential medium that will show us a clear zone around a colony of normal flora…

A: A differential medium is made up of chemicals or composition that would help us to determine…

Q: 14. Identifying Unknowns • Gram Negative • A. Serratiea • Motile marcescens • Simmons Citrate • B.…

A: Bacteria are defined as unicellular microbes that lacks membrane-bound nucleus as well as organelles…

Q: Enterococci 15. The indole test is done to see if a microorganism can hydrolyze a. Urea b.…

A: I'll be going to answer question 15-17. The question above 15 and below 17 are not complete so I…

Q: What method is best for for isolating a colony on a TSA plate? A. Swab plate B. Straight line…

A: An isolated colony represents a pure source of an organism from which a pure culture can be started.

Q: Which of the following is FALSE about interpreting the results of normal microbial flora experiment?…

A: Huge diversity of microbial flora could be found with the skin and mucous membranes of the hosts…

Q: Which bacteria is demonstrating the presence of tryptophanase? None of the bacteria Bacteria S…

A: In indole production test, we determine the microorganism's ability to produce an enzyme…

Q: While working with Mannitol Salt Agar you notice the growth of staphylococci however other…

A: Mannitol Salt Agar (MSA) is a media which has high concentration of salt solution. There are found…

Q: Microbiology

A: Gram staining is a technique which is used to identify the bacterial cell type, whether it is gram…

Q: Explain the activities associated with the isolation of Bacillus subtilis organsim from mixed…

A: Isolation of a bacterial organism from a mixed culture to a pure culture is a crucial technique in…

Q: What type of antimicrobial/antibiotic is completely synthesized in a laboratory? O Synthetic O…

A: Antibiotics are a large chemical class of therapeutics that are produced naturally or synthetically.…

Q: What is the purpose of adding mineral oil to an O/F Media tube and why do we only put mineral oil in…

A: oxidative /fermentative test is used to distingush between aerobic bacteria which oxidize…

Q: Bacteria are not used as probiotic agents. True O False The growth of bacteria that form endospores…

A: Bacteria are prokaryotic microorganisms. Bacteria are ubiquitous in nature and are found almost in…

Q: Which type(s) of medium would be used in each scenario?a. isolating the growth of Streptococcus…

A: A culture medium, also called the growth medium, can be a liquid or solid medium that supports the…

Q: Bacteria should grow on plates with media containing . ..... to perform blue/white screening   x…

A: Bacteria should grow on plates with media containing beta galtoside is required to perform…

Q: 1. Phenylethyl alcohol (PEA) agar is a selective media. Which of the following organisms should NOT…

A: The comprehensive research of microorganisms, whether they have one cell, many cells, or are…

Q: The culture medium that contains penicillin is a type of ________media.

A: Culture media were introduced in the 19th century and have since gone on to revolutionize…

Q: 1. While working with Mannitol Salt Agar you notice the growth of staphylococci however other…

A: Mannitol Salt Agar is a selective and differential media used in microbiology.

Q: 2. Please explain how the use of an Eosin Methylene Blue Agar plate can help determine the type of…

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

Q: You have two strains of E. coli, Strain I and Strain II. These strains were also co- cultured on a…

A: Antibiotics are those substances that kill or prevent the growth of bacteria. Antibiotics can be of…

Q: A negative result in the catalase test is a likely indication q a streptococcus or enterococcus type…

A: Catalase test is a detection test for the presence of catalase producing aerobic organisms in the…

Q: Media Why do we use it Selective for: Differential for: МАС EMB MSA

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: 17. Loop inoculation is made from a river samnle tube following MPN into MacConkey No. 3 oroth and…

A: It is a statistical method used to estimate the viable numbers of bacteria in a sample by…

Q: Which of the following are true of the above picture? (Select all that apply.) V The bacteria are…

A: Gram-negative bacteria have a thin peptidoglycan layer which fails to retain colour after treatment…

Q: The Guthrie Test: Uses an agar that is deficient in one growth factor for Bacillus subtilis, which…

A: Guthrie test is discovered in 1962. It is also known as Heel prick test. It is a neonatal test for…

Q: The counterstain in the Gram stain is: A basic dye A negative stain A mordant An acid dye Necessary…

A: Staining is a method for enhancing contrast in material, usually on a tiny scale. Histology, as well…

Q: Which lactose (+), Gram negative, short rod forms a pink to brick red colony on MacConkey's agar and…

A: Bacteria that cannot retain the crystal violet stain as their cell envelopes are composed of…

Q: 1. What does MacConkey select for? How does it select these particular bacteria?  What will not grow…

A: Microbial culture refers to the cultivation and maintenance of bacterial and fungal pure cultures.…

Q: S. epidermidis P. aeruginosa S. aureus E. coli Image 1. Results of special media lab. From left to…

A: Gram-staining is a staining procedure to separate bacteria based on cell wall constituents. This…

Q: What type of media are culture medium 1 and culture medium 2? And its difference to each other?

A: Differential media allows growth of different species. This media is used to differentiate between…

Q: Mannitol salt agar is a selective media that inhibits the growth of Gram-negative bacteria due to…

A: Mannitol salt agar is a differential as well as selective medium which is commonly used for the…

Q: Considering microbial identification methods, to which category would the followin method belong…

A: There are several features of the organism which have different properties on the basis of the…

Q: Eosin methylene blue agar differential or selctive ? What are the ingridients/ chemicals make it…

A: Differential media is a type of growth media used in the labs to grow and differentiate or…

Q: From these tests, we can confirm the bacteria is Streptococcus agalactiae. Now, create a FlowChart…

A: Introduction Gram staining is a process by which we can differentiate between gram positive and gram…

Q: Which of the following is not meant to reduce contamination of yoru sample? avoiding hand contact…

A: A microbial culture is done to multiply the specific strains of the microorganisms under specific…

Q: A patient comes to your office complaining of a productive cough, night sweats, and unexplained…

A: Tuberculosis is an infection of the lungs caused by Various species of Mycobacteria but the majority…

Q: What result do you report for one of your unknown bacteria in terms of mannitol fermentation?

A: Mannitol salt agar or MSA is a commonly used selective and differential growth medium in…

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.