Q: What is the difference of washing from hand disinfection?
A: Introduction:- Hand hygiene is very important for health. Hands are very important route of germs…
Q: What is the pathogen that exhibits the greatest resistance to heat treatment is the bacteria ?
A: Microbiology is the study of microorganisms that are invisible to the naked eye. The microorganisms…
Q: What group of microorganisms is responsible for producing fermented beverages? What microorganism…
A: Fermentation is defined as the metabolic process in which yeasts, bacteria, or other microbes are…
Q: Why is Hydrogen peroxide solution so effective against anaerobes?
A: Hydrogen peroxide is a chemical compound that is acts as mild antiseptic. It is also an endogenous…
Q: Phenyl Ethyl Alcohol agar encourages the growth of what type of microorganisms?
A: Answer - Option A - Gram positive bacteria
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: What would be the expected out come of a Nitrate reduction test If the bacteria is a pathogenic…
A: Nitrate Reduction Test is used to determine the ability of an organism to reduce nitrate (NO3) to…
Q: Organism 1 Organism 2
A:
Q: Does a positive presumptive test mean that the water is absolutely unsafe to drink?
A: In microbiology, the presumptive test is used to find out whether gas-forming lactose fermenters…
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: How does the concentration of H+ change when a culturemedium at pH 5 is adjusted to pH 9?
A: pH is the measure of acidity or basicity of a solution. If pH of a solution is 7, then it is…
Q: What is demanufacturing, and why is it used for some types of waste?
A: Demanufacturing was suggested as a way to reduce the environmental footprint while maintaining the…
Q: In the multiple fermentation tube technique does the absence of gas formation after 24 hours…
A: Coliform microbes are life forms that are available in the climate and in the defecation of all…
Q: Match the microorganisms in column A with their corresponding product in column B, then match your…
A: A primary metabolite is a kind of metabolite that is directly involved in normal growth,…
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: What temperature is considered adequate for achieving sterilization of a compost pile?
A: temperature considered for achieving sterilization of a compost pile is 135-160 F. At a…
Q: Why is it important to determine the number of mesophilic spores in a food ingredient?
A: Sometimes spore forming mesophilic bacteria found in food ingradient, mainly in dairy product. It…
Q: How are microorganisms able to change the pH of the media in which theyare grown?
A: The microbes can live and reproduce only within an optimum range of environmental conditions. Many…
Q: What is activated sludge?
A: Activated sludge is the method which is used to stabilise the wastewater having organic Constituents…
Q: . How could microorganisms be used to remove phosphate in wastewater?
A: Microalgae are able to convert nutrients from wasrewater into biomass and bioproducts,thus improving…
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: What is the PH indicator utilized for fermentation media? ( short answer)
A: Answer: FERMENTATION : It is the metabolic process in which chemical changes occur in an organic…
Q: Name and explain the culture media that can be used for cultivating non-specific and specific…
A: a) nutrient agar & tryptic soy agar, & brain heart infusion agar are culture media that can…
Q: Which microorganism does not contain superoxide dismutase enzymes?
A: Superoxide dismutase (SOD) is an enzyme found altogether in living cells. An enzyme could be a…
Q: Does a positive presumptive test mean that the water is absolutely unsafe to drink? Explain
A: Water is tasteless, transparent, inorganic. Colorless, and odorless chemical substance. Its chemical…
Q: What is the function of immersion oil?
A: Immersion oils are transparent oils that have specific optical and viscosity characteristics…
Q: Identify the microorganism/ group of microorganisms involved in the spoilage of Salmon pink…
A: Fermentation is a metabolic interaction that produces chemical changes in natural substrates through…
Q: Why only specific microbes are selected to produce the fermented products?
A: Fermentation refers to “partial oxidation” of sugars by microbes using the organic molecule to…
Q: What settings and time are normally used for sterilization in an autoclave?
A: The fundamental rule of steam sterilisation as cultivated in an autoclave, is to open every thing to…
Q: Why are most pathogens mesophilic?
A: The mesophilic bacteria include the group that grows at moderate temperature i.e. 20 C to 45 C. The…
Q: What is the media used in Urease Test and expected results?
A: Urease test is defined as a biochemical test that distinguishes the basic alkaline fermentation of…
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: How is water decontaminated and made safe to drink?
A: Water is very important for our survival it is required in almost all the processes which we do in…
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 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: Which of the tubes (containing thigylcolate broth) best illustrates the growth of facultative…
A: Growing bacteria in thioglycolate tube cultures allows us to easily observe different molecular…
Q: Of what practical importance are air borne microorganisms to the laboratory workers? What…
A:
Q: Explain why it is important to wash the wells with PBS between the additions of each reagent?
A: ELISA is a enzyme linked immunosorbent eassay. It is a process to get the measurements of antigens…
Q: What microbe requires serum components to be added to the growth medium?
A: Introduction Microorganisms:- An organism that can be seen only through a microscope, They live in…
Q: Why is the temperature of pasteurization at 60°C?
A: Pasteurization was invented by a French Scientist called Louis Pasteur. It was first used in 1864.…
Q: What is the purpose of the different types of media (solid, semi-solid, broth)?
A: Culture medium is the medium consist of mixture of nutrients and substances which are required for…
Q: Why did we add agar after we measure the pH?
A: pH means p stands for potential or power.H stands for Hydrogen atom.It is the power of the Hydrogen…
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: What method can be used to achieve sterilization?
A: It is required to describe the method to be used to achieve sterilization.
Q: What might have been some of the culture conditions used to isolate A. fumarolicum?
A: A.fumarolicum is an Extremophile. They are acidophilic, thermophilic and methanotropic in nature…
Q: If you suspect that your microbial culture growing in nutrient broth is contaminated, what can you…
A: The contamination refers to the growth of one or more undesired cultures in your pure sample. It can…
What is the substrate(s) that will be used by the microorganism to produce the calcite ?
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- Of what practical importance are air borne microorganisms to the laboratory workers? What precautions should be taken to control laboratory contaminants? What precautions should be taken to control laboratory contaminants? Of what advantage is the using a solid and a liquid medium?Of what practical importance are air borne microorganisms to the laboratory workers? What precautions should be taken to control laboratory contaminants? Of what advantage is the using a solid and a liquid medium?What type of media components cannot be sterilized in an autoclave?