Q: What are ambient microorganisms? Why should they not be present duringsubculturing?
A: There are some living organisms that cannot be seen by the naked eye and only can be seen under the…
Q: How does E coli grow in liquid medium?
A: The liquid medium is used to grow the bacteria culture in the test tube and also it will involve the…
Q: Phenyl Ethyl Alcohol agar encourages the growth of what type of microorganisms?
A: Answer - Option A - Gram positive bacteria
Q: What aare Agrobacterium tumefaciens ? why they are used ?
A: BASIC INFORMATION MICROBES They are the unicellular organisms which can not seen by naked eyes…
Q: What is the effect of light on microbial growth?
A: Introduction:- The quantity of bacteria in a population, rather than the size of individual cells,…
Q: What role do exoenzymes play in nutrition of microorganisims?
A: An enzyme that is secreted by a cell and functions outside that cell is known as exoenzyme.…
Q: What is the importance of agar plates and bacteria cultures in food microbiology?
A: There are different culturing techniques such as agar plates, broth culture, stab culture and solid…
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: How do bacteria differ in terms of optimal temperature for growth?
A: The optimum temperature of the bacteria is defined as the suitable temperature where the maximum…
Q: How does bacteria grow on agar plates?
A: Bacteria are the most primitive organisms on Earth. They can survive in most extreme environments as…
Q: Why are microorganisms called extremophiles?
A: Microorganisms are simplest form of organisms that cannot be seen by the unaided eye and are present…
Q: what type of bacteria would be used to make sauerkraut?
A: Sauerkraut is product of cutting raw cabbage that fermented by various lactic acid bacteria. The…
Q: Are coliform bacteria dangerous in the water?
A: Coliforms are bacteria that are always present in the digestive tracts of animals, including humans,…
Q: How to produce high yield of biomass of facultative anaerobic bacterium in laboratories?
A: Facultative anaerobic organism It refers to the organism that generates ATP through the process of…
Q: Name the source from where agar-agar is obtained.
A: Agar-agar is a gelatinous substance that is formed by a combination of linear polysaccharide agarose…
Q: What bacteria grow on both a MacConkey agar plate and Mannitol Salt agar?
A: Selective media The media is a kind of growth media which only allow the growth of a perticular…
Q: What factors can cause a lag phase in a bacterial growth curve?
A: The bacterial growth curve represents the number of live cells in a bacterial population over a…
Q: How is microbial growth directly dependent on temperature?
A: Microbes are minute, unicellular/multicellular, prokaryotic living organisms that cannot be seen…
Q: Why in cake and bread manufacture are alcoholic fermenting organisms used and not lactic fermenting…
A: The metabolic process in which enzyme acts on an organic substrate that leads to certain chemical…
Q: What are the terms used for the conditions that influence bacterial growth on food? Explain each…
A: The conditions necessary for bacteria growth on food are often acronym together as FATTOM. It stands…
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 relation of microbail growth to microbial physiology?
A: Microbes are small organisms that are found in a diverse range of habitats. The rate of growth and…
Q: In a nutrient broth, where do microorganisms acquire their requirements for mineral elements like…
A: Microorganisms are grown in laboratories using culture media. Culture media contains all the…
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 sources of microbial contamination are in nutrient agar exposed in air,water,soil and plant…
A: Sources of microbial Contamination: - AIR: - Air contains a lot of bacteria staying afloat in the…
Q: what are these bacteria growing on BA and Maconkey agar
A: Blood agar or BA is an enriched culture medium having multiple nutrients. Blood agar is generally…
Q: What makes agar good support for microbial growth?
A: Microbial culture is a method of multiplying microbial organisms by letting them reproduce in…
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 information can obtain from observing the growth of bacteria on liquid agar?
A: Liquid agar is a liquid media mixed with agar which when heated solidifies and then is used as a…
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: What is the role of nitrate in microbial metabloism?
A: Nitrogen-fixing bacteria, microorganisms capable of transforming atmospheric nitrogen into fixed…
Q: Do Gram-positive bacteria grow on PEA agar? If not, what prevents their growth?
A: Bacteria are common, mostly free-living organisms that are often made up of only one biological…
Q: What information can obtain from observing the growth of bacteria on solid agar?
A: Agar is a jelly-like substance, obtained from rhodophyceae that are commonly knows as the red algae.…
Q: What does a MEGA plate tell you about your microbial culture?
A: Microbiology is the branch of biology that deals with study of organisms that are too small to be…
Q: What is a pure culture and why is obtaining one useful inmicrobial ecology?
A: Microbes are living organisms. They are ubiquitous. They cannot be seen by the naked eyes. In…
Q: Why do microorganisms grow more slowly as the pH deviates from their optimum growth?
A: Growth is acheived when bacterium is grown in liquid medium and is subjected for incubation. After…
Q: What are the culture media that can be used for cultivating non-specific and specific…
A: A microbiological culture medium is a substance that promotes the growth, support, and survival of…
Q: What type of agar is MacConkey agar?
A: MacConkey agar or MAC which is also described as a bacterial culture medium was named after the…
Q: What conditions need to change in order to allow for thermophilic spores to grow instead of…
A: Spores are a dormant form of bacteria. They are tough and highly resistant to unfavorable conditions…
Q: how does psychrotrophic bacteria cause the spoilage of refrigerated foods?
A: The term psychrotrophs (additionally named psychrotolerant) alludes to microorganisms that can…
Q: How would light shone on one side of the Winogradsky column influence the growth of microorganisms?
A: Microbiology is the study of microscopic organisms, such as bacteria, viruses, archaea, fungi and…
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: Why do petroleum-degrading bacteria need to attach to thesurface of oil droplets?
A: Petroleum is a crucial strategic resource and all countries compete fiercely for it. The…
Q: What is a starter culture and what is its purpose? What are the characteristics of a good starter…
A: STARTER CULTURE:- Starter culture are those microorganisms that are used in the production of…
What types of bacteria grow on nutrient agar?
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