How would you use a differential and selective medium in the microbiological analysis of a contaminated food product?

Q: A fastidious organism must be grown on what type of medium?a. general-purpose mediumb. differential…

A: Bacteria require appropriate environmental conditions for its growth. Solid or a liquid preparation…

Q: Why is the culture medium referred to as a highly enriched laboratory soil?

A: Culture medium is referred to as highly enriched laboratory soli because it provides all the…

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: How does colony morphology help you monitor the purity of your culture? What are disinfectants and…

A: Microbiology is the study of those living organisms which cannot be seen through naked eyes…

Q: Describe how you would execute this first stage from the point you are handed the nutrient broth…

A: For isolation of any culture, it needs to be incubated in broth to obtain full fledged turbidity or…

Q: Why is the membrane filter method preferred to the most probable numbermethod (MPN) for the…

A: Most probable number (MPN) is a method used to estimate the numbers of bacterial cells in a water…

Q: what are some of the strengths and weaknesses to using a Culture dependent enumeration approach from…

A: culture-dependent methods generally recover a small portion of the diversity from soil environments.…

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: How does McConkey agar serve as both selective medium and differential medium ?

A: MacConkey agar is a culture media that contain bile salts, crystal violet dye, neutral red dye along…

Q: What type of media is used to encourage the growth of only the suspected pathogen from nonsterile…

A: The growth media or culture media is used to grow microorganisms in the laboratory conditions.…

Q: What should be taken into consideration in the selection of the culture preservation method?

A: The problem of maintaining microbial culture is one that many fields of microbiology face. The…

Q: Where should a label be written on an agar plate?

A: The aseptic technique is applied in a laboratory setup to reduce the risk of contamination. It…

Q: What are the characteristics of good indicator organisms, and whyare they monitored rather than…

A: Indicator organisms are microorganisms whose presence in water indicates the probable presence of…

Q: What are the factors which need to be considered in the selection of culture vessel?

A: Culture vessels:- Culture vessels provide a contamination barrier to protect the cultures from the…

Q: Suppose you have a pure culture of Serratia marcescens.  You subject this culture to both streak…

A: Thank you for the question  Answer Pure culture is a culture in which cells of only one bacterial…

Q: Explain the difference between selective medium and a differential medium

A: For growing microbes in laboratory we need to provide them with adequate nutrients.

Q: Which of the following medium is considered an enriched medium? a. LB b. T-soy  c. Nutrient  d.…

A: A growth or culture medium is solid, liquid or semi solid in nature that is used to support the…

Q: Outline a method for preparation of tomato cell suspension culture and subculture

A: Cell culture is a procedure in which cells are grown under artificial conditions in suitable medium…

Q: Which of the following is an example of microbial control? Select all that apply. View Available…

A: Microbes  They are the submicroscopic organism that may be useful or harmful to human, animals and…

Q: Compare and contrast pure culture, mixed culture, contaminated culture, and subculture.

A: Culturing is a process of inducing the replication or growth of microorganisms by providing…

Q: Why are Sterilization, Antisepsis and disinfection necessary?

A: Sterilization is the process of killing or deactivating all forms of microorganisms and spores.…

Q: How can you determine whether a culture or subculture is pure?

A: A pure culture can be defined as a population of cells or multicellular organisms growing in the…

Q: CONTRAST the following pairs of terms:

A: In the given question a distinction between Sterilize and disinfect is asked for, which are two…

Q: how often must bacteria be subcultured from a broth to maintain culture viability?

A: Answer: Sub-culturing is the method of regrowth of the bacterial cells in to a freshly prepared…

Q: Enumerate the Good Microbiological Practices encountered in the activity.

A: Microbiological practices are those precautions which  we have  follow while working in the…

Q: how might you apply Kochs postulates to a pathogen that will not grow on culture media?

A: The organism which cause disease in its host is known as pathogen. Pathogen are those microorganisms…

Q: Do all the microbes are cultivable in lab? Explain different techniques to study the microbial…

A: Microorganism: These are too small organism which is impossible to see by naked eyes. They exist in…

Q: What other fields of science besides microbiology is the aseptic technique used?

A: Aseptic technique refers to the procedures that prevent the contamination of microorganisms. They…

Q: Do you think that you will be able to determine the CFU’s in the food samples by counting the…

A: In order to maintain organisms or to ensure that subcultures from isolation plates are pure before…

Q: What is the nature of samples that should NOT be placed inside the drying-oven?

A: According to the question, we have to explain the nature of the samples that should not be placed…

Q: what are various physical methods used by microbiologists to control microbial growth?

A: The growth of microbes needs to be controlled to prevent unwanted microbial contamination and…

Q: Differentiate between defined and complex culture media

A: To differentiate: Chemically defined and complex culture media

Q: Is there any pH buffering system or device for acidic microbiological experiments?

A: All biological processes are dependent on pH, cells and organisms must maintain their specific and…

Q: Why don’t health departments routinely test for pathogens instead of using a sewage indicator?

A: The most widely used sewage indicator organisms are fecal coliforms. This is because these microbes…