Q: What advantages do solid media offer for the isolation ofmicroorganisms?
A: Micro-organism are those that cannot be seen by the naked eye, but are visible under microscopes.…
Q: Why does a precipitate form on Sierra’s medium when inoculated with a lipolytic organism? Discuss…
A: Nutrient mediums are used to provide growth to the microorganism in invitro experiments. These…
Q: When using CH4 as electron donor, why is Methylococcuscapsulatus an obligate aerobe?
A: Methylococcus capsulatus is an obligate aerobe that uses CH4 as a carbon source. It is a…
Q: How are enrichment media and selective media different?
A: In microbiology the culture media is very much important. Different types of culture media are used…
Q: Briefly explain this statement "Antineoplastic natural products- Taxol"
A: Taxol is an enemy of malignancy ("antineoplastic" or"cytotoxic") chemotherapy drug. Taxol is…
Q: Can culture media be sterilized in the hot air sterilizer? Why or why not?
A: Hot air sterilization is a procedure in which the sterilization of the objects are done using hot…
Q: Is the eosin methylene blue agar? (EMB) a complex or defined medium? Explain based on its…
A: Complex media consists of nutrients such as water soluble extracts of plant or animal tissue and…
Q: What are the approaches for sterilization during the production of sterile products? Please answer…
A: destruction or complete removal of all living organisms and their spores is called as sterilization.…
Q: What growth factor is often supplied for cultivation of fastidious bacterial pathogens?
A: A fastidious organism requires specific nutrients for growth. In microbiology, the culture medium…
Q: Agar is a solidifying agent used in media preparation. What is its origin?
A: Agar gel is a polysaccharide which can become liquefied at temperatures ranges from 85°C to 90°C and…
Q: How to culture the media of L. bulgaricus and S. thermophiles properly by using aseptic technique?
A: For the culture of L. bulgaricus and S. thermophiles RCA (Reinforced clostridial) agar and ST…
Q: Why does penicillin purification use a centrifugal extractor?
A: A Centrifugal extractor is a piece of laboratory equipment that uses rotors to mix two immiscible…
Q: How is the CTSA (Coconut tryptic soy agar) growth medium designed to meet the nutritional need of…
A: Coconut trypic soy agar media are general-purpose, non-selective media that provide enough nutrients…
Q: What are other applications of Agrobacteriummediatedplant transformation?
A: Transformation is the process by which sexual reproduction occurs in bacteria. In this, the DNA…
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: Why are complex media preferable to chemically defined media for routinecultivation of…
A: Microorganisms require nutrients as an energy source and certain other environmental conditions to…
Q: What is the primary reason that wine is pasteurized?
A: Food technology is a branch of science which deals with various aspects of food science such as…
Q: Why is the time of exposure and temperature required for sterilization greater for dry heat than for…
A: Any technique that removes, destroys, or deactivates all forms of life and other biological agents…
Q: Explain why sulfa drugs prevent bacterial growth without harming the human host.
A: Antimicrobial drugs are those which destroy or inhibit the growth of microorganism. They have their…
Q: What would be the main consideration in the media composition for growth-linked products vs products…
A: The media composition for growth-linked products includes primary metabolites and media composition…
Q: In the differential absorption heterophile test, what findings are diagnostic of IM?
A: Infectious mononucleosis is a very common disease in adults with symptoms such as malaise,…
Q: why macconkey agar and mannitol salt are regard as salective and deffrental medium?
A: A culture medium is just water and nutrients that support microbic growth. Primary culture media for…
Q: what is the cause of different species of psychrotrophic bacteria growing in the CTSA medium at 7…
A: They can grow at extreme low temperatures and lead to spoilage of food by modifying the compounds…
Q: Why is agar ideal for microbial cultivation?
A: The microbial cultivation is the process in which microorganisms are cultivated in the laboratory,…
Q: What enzyme is required for hydrogen bacteria to grow asH2 chemolithotrophs?
A: Lithotroph: These are the different groups of organisms that use the inorganic substance for energy…
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: Are you able to identify the lag, log, stationary and death phase in using this growth curve?
A: Microbes grown in a closed or batch culture in which certain conditions are that no nutrients are…
Q: Why is Escherichia coli used as an indicator organism inmicrobial analyses of water?
A: The well-known gram-negative bacteria are E. coli (Escherichia coli).
Q: What is the name of this media? What type of media is it? What does the yellow color indicate? What…
A: Selective media generally selects for the growth of a desired organism, stopping the growth of or…
Q: Which microbial control agent would most effectively inhibit anaerobes and why
A: Hydrogen Peroxide
Q: What is the point of the pressure in the autoclave sterilization?
A: Autoclaves are the devices which are like pressure cookers and used in laboratories that provide a…
Q: What are the criteria for media selection and the basic requirements for media formulation for…
A: Fermentation is a metabolic process that produces chemical changes in organic substrates through the…
Q: Agar is a solidifying agent used in media preparation.a. What is its origin? b. What makes it ideal…
A: A growth medium or culture medium is a gel or liquid designed to support microorganism growth. The…
Q: Discuss the principle of flame sterilization.
A: Sterilization is any method that eliminates, destroys, or kills any life such as fungi, bacteria,…
Q: What is the relationship between the most probable number method and nitrate in environmental…
A: Microbiology is the branch of biology that deals with study of organisms that are too small to be…
Q: Why do you need to use antifoams in fermentation medium? How you could avoid from contamination…
A: Fermentation is a biochemical process that involves chemical changes in organic substrates, such as…
Q: What type(s) of extremophiles are used in oil well drilling operations
A: Hydrocarbons or crude petroleum is extracted by drilling oil well deep into the soil, to bring it…
Q: Why is the sterilization important in healthcare system and can you give briefly explain?
A: Medical sterilization mainly makes use of three important terms such as sterilization, disinfection…
Q: What are the factors that influence the efficiency of chemical sterilization?
A: Chemical Sterilization is the process of removal of microorganisms by the use of chemical…
Q: Write the limitations of sterilization by Dry heat?
A: The dry heat sterilization technique includes the removal or killing the microorganism and require…
Q: What is the purpose of flaming an inoculating loop?
A: The question asks to give the reason for flaming or sterilizing an inoculating loop.
Q: Are you able to identify the lag, log, stationary and death phase in using this growth curve? Are…
A: The growth curve of bacterial cells can be divided into four distinct phases known as lag, log (or…
Why del factor is important in media sterilization?
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- Write the limitations of sterilization by Dry heat?UV light is used in clean rooms and some operating rooms. what are the limitations of using UV light as a means of sterilization?Why is it necessary to perform an enrichment procedure in isolating Staphylococcus aureus instead of directly plating it into a selective medium? What might happen if you omit potassium tellurite in using GCM?