Q: Why is it important for the commercial canning process to destroy the endospores of Clostridium…
A: An endospore is basically a dormant, tough and non-reproductive structure produced by some bacteria.
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: 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: Phenyl Ethyl Alcohol agar encourages the growth of what type of microorganisms?
A: Answer - Option A - Gram positive bacteria
Q: Why does motility media contain a lower amount of agar than ordinary agar?
A: Agar is a phyco-colloid polymer of galactose monomers obtained from red algae (Gelidium and…
Q: Why does Balantidium coli have the greatest clinical impact?
A: Protozoa are heterotrophic, eukaryotic, unicellular, organisms. They have almost 65000 species of…
Q: What role does iron play in the redox metabolism of Thiobacillus ferrooxidans?
A: Acidithiobacillus ferrooxidans is a type of gram-negative, autotrophic, and rod-shaped bacteria. It…
Q: What is the purpose of the crystal violet, bile salts, and neural red in MacConkey Agar media?
A: MacConkey Agar or MAC is a culture medium. It is a selective and differential medium designed for…
Q: why is it that psychrotrophs placed in TSA medium are incubated at 7oC?
A: Psychrophiles are organisms that can survive and reproduce in low temperatures as low as -20 degrees…
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: Why mightproteorhodopsin make a bacterium such as Pelagibacter morecompetitive in its habitat?
A: Proteorhodopsin(pRhodopsin) is a family of transmembrane proteins which is the most abundant retinal…
Q: Why would it be impossible for gram-positive bacteria to storesulfur as gram-negative…
A: Gram-negative bacteria are bacteria that do not retain the crystal violet stain used in the Gram…
Q: What is Pasteurization?
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: Colonies that produce alkaline waste on Hektoen enteric agar will turn O blue-green. pink. black. O…
A: In presence of colonies , alkaline waate on hektoen enteric agar turn into blue green color.…
Q: What is the rationale for selecting E. coli as the indicator of water potability?
A: We are all aware of the fact that , water is crucial and vital for sustainability of life on earth.…
Q: Why might members of Campylobacter not be isolated from a stoolspecimen in a diagnostic laboratory?
A: Efficient Detection of pathogenic organisms ensures the success of laboratory techniques. It is…
Q: What advantages does the anammoxprocess have over classical wastewater treatments for N removal?
A: Anammox (anaerobic ammonium oxidation is a reaction that oxidizes ammonium to dinitrogen gas using…
Q: Explain the function of the ferrous ammonium sulfate in SIM agar.
A: SIM agar test is used for the differentiation of gram-negative enteric bacilli based on their…
Q: Salmonella typhi is a facultative anaerobe. Explain why.
A: Salmonella is a genus of Gram-negative bacteria that are rod-shaped (bacillus) and belong to the…
Q: What is aquaporins ? Why it is used ?
A: Answer- There are many intergral proteins that are embedded in the plasma membrane.
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: 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 CFU more applicable to a culture of Streptococcus than to a culture of E. coli?
A: Colony-forming unit (CFU) represents the number of colonies formed on the media plate from one…
Q: How does alkaline treatment improve the quality of agar/carrageenan extracted from the seaweed…
A: Agar is a polysaccharide created from two essential additives. Agarose and agaropectin. Agarose is…
Q: Which media is used to determine if members of the Enterobacteriacae is motile: Sulfur Indole…
A: Introduction: The Enterobacteriaceae are a large bacterial family that contains several well-known…
Q: Why should culture media after inoculation be incubated at an optimal temperature immediately?
A: Culture media, also called as growth media, are particular combinations of nutrients and other…
Q: why is microalgae spirulina is most commonly used to reduce air pollution?
A: Pollution is the presence of harmful substances in the environment. These harmful substances are…
Q: What is the mechanism by which enterococci are able to grow in high salt conditions?
A: The Enterococci are facultative anaerobes, gram-positive coccus that appears to be in short chains…
Q: Is Bacillus cereus negative or positive for growing in high salt concentrations?
A: Bacillus cereus is a gram-positive, endospore forming, non-capsulated bacillus, motile with…
Q: What is the use of hay infusion in determination of microbial motility?
A: Hay infusion use in determination of microbial motility.
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: Why is 15 minutes generally used for sterilization? Why is agar added to medium?
A: Sterilization is the process in which all life forms like microbes (fungi, bacteria, viruses,…
Q: Why is it important to distinguish between E.coli & E. Aerogenws in contaminated water samples?
A: E.coli is a rod-shaped, gram -ve, facultatively anaerobic, coliform bacterial species that is…
Q: Contrast the mechanism for motility in Flavobacteriumwith that in Escherichia coli.
A: The ability of organisms to move is called motility. Prokaryotes move by flagella that are unique to…
Q: What is the most difficult type of microbial cell or structure to kill? What methods can be used to…
A:
Q: what is usefulness of columbia CNA agar? Can it be used to test water ?
A: Columbia Agar is a highly nutritious base medium The addition of the antimicrobial agents, colistin…
Q: What selective agents are added to media to preferentially grow enterobacteria for study? What type…
A: Gram-staining is a procedure of staining than can be used to differentiate between bacterial species…
Q: Why do most iron-oxidizing bacteria grow at anacidic pH?
A: Iron-oxidizing bacteria are those chemotropic bacteria that obtain the energy for their living and…
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 should you filter some liquids for sterilization, rather than autoclaving them?
A: To control microbial growth or contamination there are a number of aseptic techniques developed that…
Q: What are the steps in nitrate reduction as carried outby Pseudomonas species? What is this metabolic…
A: Pseudomonas is the genus of bacteria that belongs to the Pseudomonadaceae family. It is a…
Q: What are compatible solutes, and when and why are theyneeded by the cell? What is the compatible…
A: Compatible solutes are important for maintaining the molecular stability of the microbes with their…
Q: Colonies that produce alkaline waste on Hektoen enteric agar will turn O blue-green. O pink. O…
A: Colonies that produce alkaline waste on Hektoen enteric agar will turn blue- green.
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: Describe the appearance of coliforms on Levine EMB agar.
A: Coliform bacteria are found in a diverse range of places like waste products of animals, water…
Q: Why is chlorination, although beneficial in terms of bacterial pathogen control, of environmental…
A: Chlorination is a disinfection procedure in which microorganisms are killed by the use of chlorine…
Q: Why does Propionigenium modestum require sodium for growth?
A: Propionigenium modestum grows from the fermentation of succinate to propionate and CO2.
What key role does Acidithiobacillus ferrooxidans play in the
copper leaching process?
Step by step
Solved in 2 steps
- Why mightproteorhodopsin make a bacterium such as Pelagibacter morecompetitive in its habitat?What are the steps in nitrate reduction as carried outby Pseudomonas species? What is this metabolic processcalled?Is the Mueller-Hinton Agar (MHA) a complex or defined medium? Explain based on its composition. Is MHA a A) differential, B) selective, C) both differential and selective media, or D) neither? Explain based on what kind of microorganisms it allows to grow.
- What is the purpose of the crystal violet, bile salts, and neural red in MacConkey Agar media?Which statement among A-C is not applicable to flocculation, or floc formation, during wastewater treatment? A) O Filamentous bacteria enhance floc formation. B) O Flocculation is important for the production of a clear effluent stream of wastewater. O O Flocculation decreases the amount of BOD entering the effluent stream of wastewater. D) OA-C are all applicable.Which crucial step in the oxidation of copper oresis carried out by Acidithiobacillus ferrooxidans?
- What selective agents are added to media to preferentially grow enterobacteria for study? What type of growth is inhibited?Why are the streak plates incubated at 7°C when selecting for psychrotrophic bacteria?a) What is the consequence of discharging larger volumes of sewage that is untreated into a river? b) What is the significance of anaerobic sludge digestion in sewage treatment?