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?
Step by step
Solved in 2 steps
- You are characterizing a newly discovered organism . You have noticed that the organism grows on two carbon sources - sucrose and mannitol . Whenever you add both sugars to the medium , sucrose will be completely metabolized before mannitol . a ) What is this growth pattern called ? b ) Describe a possible growth curve of sequential metabolism of the sugars .What role do exoenzymes play in nutrition of microorganisims?Why does bacterial growth stop temporarily when the glucose supply in the medium is used up?