On which of the following types of media would you expect untransformed bacteria to grow on?

Q: After completion of a Gram stain procedure, you notice the bacteria cells shown in the picture…

A: Gram stain results, cell arrangement, and cell shape:Gram stain results: The bacteria appear purple,…

Q: student needed to transfer bacteria from a broth culture to an agar plate. Below is the step-by-step…

A: 5. The loop was flamed

Q: Isolating a pure culture from a mix sample is typically done on solid agar but can be performed…

A: A microbial culture is a method of multiplying microbial organisms by letting them reproduce in…

Q: Why does motility media contain a lower amount of agar than ordinary agar?

A: Agar is a phyco-colloid polymer of galactose monomers obtained from red algae (Gelidium and…

Q: Choose two from the following culture preservations that are best to use when only an ordinary…

A: Many laboratories and biological companies maintain large culture collection centres. These are…

Q: to observe the motility of an UNKNOWN Bacteria isolated from a mixed culture, which technique/s is…

A: Motility is the ability of an organism to move from one place to other, generally, the bacteria…

Q: If lysozyme is added to a microbial culture. Predict what will be observed if the culture is…

A: Microorganisms are small organism that cannot be seen by naked eyes. They include bacteria, fungi,…

Q: What is the similarities of differential centrifugation and gradient centrifugation?

A: Similarities between differential centrifugation and gradient centrifugation is process involved…

Q: You then take a cotton swab and subculture a sample from this zone of inhibition (where no growth…

A: The Kirby-Bauer test, known as the disk-diffusion method, is the most widely used antibiotic…

Q: Collecting data that can then be transformed into a bacterial growth curve is usually done using a…

A: A spectrophotometer is an instrument used to measure the amount of light absorbed by a sample. The…

Q: All of the following are correctly matched and can be found in bacteria EXCEPT: None of the other…

A: Note : Dear student as per our guidelines we are supposed to answer only one of your questions. So…

Q: Why is a metal loop heat to read before picking up a bacterial sample? What should you do with a…

A: In microbiology, inoculation is the technique of transferring bacteria into culture media so that…

Q: Which of the following cannot be grown in artificial media and must be grown in live animals or…

A: Artificial media is a medium that is defined. This medium is chemically defined. It is a synthetic…

Q: How would you grow a streptomycin-resistant strain E. coli bacteria was spread on both agar plates…

A: Bacterial resistance does have the capacity where bacteria will withstand the effects of antibiotics…

Q: ing is a recipe for a bacterial growth medium: 35 g Dextrose, 12 g Aga 1.2g Salt, 3 g Yeast cell…

A: Growth medium can be of many types. Growth media is a media which contains nutrients for chemical…

Q: Can culture media be placed in a freezer? Why or why not

A: Culture media are also called as growth media. They are mixture of nutrients and other substances…

Q: A culture medium is comprised of the following components: 0.5% peptone, 0.3% meat extract, 1.5%…

A: In this scenario, we are tasked with preparing a culture medium with specific components, including…

Q: Imagine you made a single kirby bauer plate to determine if a given antibiotic were effective for…

A: Introduction Antibiotics, also called antibacterials, are drugs that kill or slow the growth of…

Q: In the Gram stain, gram-positive bacteria are dark purple for all the following reasons EXCEPT:…

A: Organisms can be provisionally identified by growing them on medium and looking at their shape and…

Q: Can you please discuss the principles of using Motility Test Medium for the detection of bacterial…

A: Bacterial motility is usually demonstrated in a semi-solid agar medium. Motile bacteria ‘swarm' in…

Q: Imagine that you are Gram staining a mixed culture of both gram-positive and gram-negative bacteria.…

A: The bacteria cell envelope is a complex multilayered structure and based on this structure the…

Q: Describe how each of the following would appear when grown on EMB agar: a. Escherichia coli b.…

A: EMB stands for Eosin Methylene Blue. This media is used as a seletive stain for the gram negative…

Q: For a laboratory exercise of basic techniques in microbiology: Gram stain and Microscopy. What are…

A: "Gram staining is important in microbiology because it allows scientists to quickly and easily…

Q: Dilute cells from an old culture 1:200 into 5 mL of fresh media. What volume of the old culture…

A: Introduction Dilution is the process of lowering the concentration of a solute in a solution by…

Q: Can you give me an example of a specific medium in culture media and fill the information below.…

A: Selective media are those that prevent the growth of undesirable microorganisms while promoting the…

Q: For growth, a mutant bacterium requires that an amino acid not required by the wild parental strain…

A: Answer :- For growth, a mutant bacterium requires that an amino acid not required by the wild…

Q: LB (Lysogeny broth) medium for the growth of E. coli,

A: Pseudomonas putida is a kind of rod-shaped, Gram-negative, non-fermenting bacterium which is present…

Q: What type of agar would you use to grow gram positive bacteria

A: Bacteria are different from the plant as well as animals. They require specific substances in the…

Q: Based on these results, which of the following statements is true regarding the effectiveness of…

A: A disinfectant is a chemical substance or compound that is used to inactivate or destroy the…

Q: If you were using the quadrant streak plate method to plate a very dilute broth culture ( with many…

A: Quadrant streaking is a microbiological technique which is used for isolation of pure strain from…

Q: Describe the step by step method of preparing culture media in microbiology.

A: Culture media are the media or the substrate used to grow microorganisms.  There are different types…

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: To determine if the type of agar affects bacterial growth, a scientist cultures on fou different…

A: Agar is galactose based heterogeneous polysaccharide. Agar is made from red algae. The main…

Q: In August 2021, there was a multi-state outbreak of melioidosis, an infectious disease caused by the…

A: In microbiology, there have different types of culture mediums that are commonly used to grow…

Q: You obtain a 1 mL sample of contaminated drinking water in order to calculate the number of  fecal…

A: The evaluation of fecal microscopic organisms in water could be a critical public well-being measure…

Q: The students of a Microbiology class were tasked to transfer or subculture a pure culture of…

A:

Q: You have a broth medium that you would like to turn into a solid medium in order to do streak…

A: The "nutrient broth" is essentially nutrient agar without the solidifying agent. They stay liquid at…

Q: Incidence is used in the calculation of risk ratio O True O False

A:

Q: You are transferring a bacterial culture from a tube of broth to a Petri dish containing trypticase…

A: Bacterial culture: It is a technique that enables the controlled multiplication of bacterial cells…

Q: Explain why it is essential that bacteria cultures be sterilized in an autoclave.

A: The microbial cultures are grown in the laboratory so as to multiply them or increase the number of…

Q: You have several different media onto which you inoculated eight strains of yeast (A-H). The media…

A: Minimal medium (unsupplemented) A minimal medium is a growth medium used for growing microbes and…

Q: What is the importance of describing the morphological characteristics of bacterial colonies when…

A: The characteristics of colony that is formed by the bacteria are - colour, opacity, shape,…

Q: In the Gram stain, gram-negative bacteria appear red for all the foll

A: Gram-negative bacteria appear red because they do not retain the crystal violet stain used in the…

Q: Streaking One drop of bacterial solution contains millions of cells. To identify a species,…

A: The purpose of streaking for isolation is to produce isolated colonies of an organism on an agar…

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.