Q: How is this medium (the Mitis Salivarius medium) differential? What components make it a…
A: A growth medium or culture medium is the solid, liquid, or semi-solid, which is designed to support…
Q: What are the materials used to grow microorganism like Spirulina?
A: Introduction In this question we will discuss about the materials used to grow microorganisms like…
Q: Why does an facaltive anaerobic bacterium usually grow better with oxygen than without?
A: A facultative anaerobe is one which is able to survive in both aerobic (oxygen) as well as anaerobic…
Q: List the different type of bacteria depending on the salt concentration required for their growth?…
A: Halophiles are found in three domains -Inside the Bacteria halophiles depend on salt concentration…
Q: What effect does decreasing the incubation temperature have on bacterial growth rate? Why?
A: Bacterial growth is proliferation of bacterium into two daughter cells, in a process called binary…
Q: Which has a greater impact on the survival of an organism, temperatures above its maximum…
A: The microbes grow in a wide temperature range. The microbial growths are found to be higher at their…
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: What is agar and why is it necessary for growing bacteria on plates?
A: Agar is a mixture of two polysaccharides- agarose and agaropectin. It is derived from red-purple…
Q: What is the best growth medium that contains glucose that can be used to acclimatize bacteria? and…
A: A growth medium is a liquid, solid, or semi-solid preparation that supports the growth of a…
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: What is the oxygen requirement and gram reaction of Naegleria fowleri? Is it Aerobic or Anaerobic?…
A: Naegleria fowleri is a amoeba,which are free living .They are present in soil ,water bodies,decaying…
Q: Is the Triple-Sugar Iron Agar (TSIA) a complex or defined medium? Explain based on its composition.…
A: A growth medium is a also known as a culture medium which can be solid, liquid, and even…
Q: What molecular adaptations to cold temperatures are seen inthe cytoplasmic membrane of…
A: Psychrophiles protect themselves from an expansion of ice and freezing by the vitrification and…
Q: On what medium is the membrane filter incubated? Describe the appearance of coliforms on this…
A: Membrane filter technique is used for the enumeration as well as isolation of microbes in the water…
Q: Why does a one-step growth curve differ in shapefrom that of a bacterial growth curve?
A: Growth curves are generally the description of the density of cell populations in liquid culture…
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 makes the cell wall of Listeria monocytogenes interesting in regard to the Gram-negative cell…
A: Listeria Monocytogenes : It is a gram positive bacteria. This bacteria can grow at temperature…
Q: What is the use of hay infusion in determination of microbial motility?
A: Hay infusion use in determination of microbial motility.
Q: What is the purpose in incubating one blood agar plate in aerobic conditions and another blood agar…
A: Blood agar plates abbreviated as BAP are enriched differential media utilized for isolating…
Q: Can you thoroughly explain the effect of pH on the growth of Bifidobacterium, an anaerobic, gram…
A: This bacteria is one of the inhabitants of the human colon. It is an anaerobic, gram-positive,…
Q: Why are the streak plates incubated at 7°C when selecting for psychrotrophic bacteria?
A: Bacteria are unicellular, prokaryotic organisms which are devoid of membrane bound organelles and a…
Q: What prevents Elodea cells from becoming shriveled up like a blood cell would become if placed in a…
A: Hypersonic solutions are those which have high concentration of salt in it.
Q: why are psychrotrophic bacteria incubated at 7 degrees
A: Each species of microbe has a preferred temperature that lies somewhere between its characteristic…
Q: What culture medium can be used for the acclimatization of Bacillus and Pseudimonas to degrade…
A: Answer: CULTURE MEDIA = These are the selective and differential media which are used to grow…
Q: What kind of osmotic environment does syrup have?
A: Hypotonic substance contains lot of water in it. Hypertonic substance will contain lot of sugar or…
Q: Is the Mueller-Hinton Agar (MHA) a complex or defined medium? Explain based on its composition. Is…
A: Mueller and Hinton in 1941 developed Mueller Hinton Agar(MHA). MHA is used for routine…
Q: How should agar plates be incubated? Why?
A: Incubating the plates to stimulate the growth of microbes is a crucial step in any microbiology…
Q: What key role does Acidithiobacillus ferrooxidans play in thecopper leaching process?
A: Bioleaching is the process that involves the action of microbes to extract specific metals from…
Q: In determination of microbial motility, what morphological structure is responsible for bacterial…
A: Introduction: Bacterial motility: Bacteria have developed a huge variety of movement mechanisms to…
Q: Can members of the genus Cytophaga be cultured on standard solidified media? Why or why not?
A: The microorganisms can be grown in-vitro by subjecting them to suitable growth conditions. The…
Q: Which organism can produce pyocyanin?
A: Answer. Pseudomonas aeruginosa is considered one of the most common pathogens in hospitals. It is an…
Q: What salt media stops the growth of E.coli and Staph epidermidis?
A: Introduction :- The bacterial cell grows in various media on the basis of their requirements .As…
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 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: 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: Given the ultimate location of aquaporins in the cell, where would they be manufactured?
A: Aquaporins (AQPs) are transmembrane protein which help in the regulation of water flow into and…
Q: what happens to an Elodea cell when placed in a hypertonic solution and then add distilled water?
A: Answer: ELODEA cells: these are the plant cell present in the leaf. It has nucleus and cell wall ,…
Q: Why does Bacillus subtilis break down phenol better even at high concentrations than E. coli and…
A: Phenol is distributed either as natural or artificial mono-aromatic compounds in various…
Q: What would be added to a flask with E.coli incubated in the presence of oxygen to allow the maximum…
A: Escherichia coli, also known as E. coli, is a Gram-negative, rod-shaped bacteria that lives in the…
Q: What conditions are necessary to destroy endospores? In what device are these conditions achieved?
A: Endospores are dormant vegetative cells that have a thick outer covering making them resistant to…
Q: What is the oxygen requirement and gram reaction of Necator Americanus? Is it Aerobic or Anaerobic?…
A: Hookworm Hookworm are the parasitic roundworm that infect human gut.
Q: Why does Propionigenium modestum require sodium for growth?
A: Propionigenium modestum grows from the fermentation of succinate to propionate and CO2.
Q: How does the cell wall of Mycobacterium influenceits reaction to the Gram stain and the acid-fast…
A: MYCOBACTERIUM- Mycoplasmas are a group of bacteria that do not have devoid of cell walls as they…
What are compatible solutes, and when and why are they
needed by the cell? What is the compatible solute of
Halobacterium?
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Solved in 2 steps
- What are the effects of the different agar concentrations, the temperature, and the dye types on the rate of diffusion? How do these factors mediate in the observed diffusion?What is the best growth medium that contains glucose that can be used to acclimatize bacteria? and why?What makes the cell wall of Listeria monocytogenes interesting in regard to the Gram-negative cell wall and the Gram-positive cell wall and also lipopolysaccharide (LPS) layer?
- Detergents that are good micelle formers often have strongantibacterial properties. Considering the structure of thecell membrane, suggest a reason for this antibacterialaction.What is Circular Dichroism? Discuss its theory and applications.What is the chemical constituent responsible for the acid-fast property of Mycobacterium species?
- Why might clinical medicine have an interest in understanding bacterial cell division at the molecular level? Explain why a hyperthermophile would probably not be a human pathogen. Describe four factors that may have an influence on the effectiveness of an antimicrobial treatment. Explain why 70% or 80% alcohol is more effective than 100% alcohol in controlling microorganisms.Given the ultimate location of aquaporins in the cell, where would they bemanufactured?why is Brocardia anammoxidan a Gram-negative bacteria? what does gram negative bacteria mean?