Q: Is the plasmodium falciparum a facultative anaerobe? If not, what would it be?
A: Plasmodium falciparum is a protozoan parasite, that is the causative agent of the most severe form…
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: Why would farmers be concerned about nitrifying bacteria?
A: Nitrifying bacteria are a small group of aerobic bacteria belonging to the family Nitrobacteraceae…
Q: Why are endospore forming bacteria commonly found in soil?
A: A bacteria is a cell which is susceptible to a variety of environmental stress. Any environmental…
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: What is the oxygen requirement of this microbe? Thioglycollate Broth -Obligate aerobe=growth only…
A: Thioglycolate broth is an enriched and differential medium which is used mainly to determine the…
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: 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 are the streak plates for microorganisms in coconut water incubated at 7°C?
A: The benefits of streaking for isolation is to produce isolated colonies of an organism on an agar…
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: Diseases that involve biofilm-producing bacteria are of serious concern. They are not as easily…
A: A biofilm is thin but a robust layer of mucilage , adhered to a surface like human skin , tooth ,…
Q: Bacillus subtilis and what enviroments does it thrive in and why?
A: Bacillus subtilis has been one of the most commonly employed species in the study of genetic…
Q: A prokaryotic cell hitched a rideto planet earth on a space shuttle from some unknown planet. The…
A: A microorganism, or microbe, is a microscopic organism, which may exist in its single-celled form or…
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: How would a facultative anaerobe growth curve change if it was placed in the presence of oxygen…
A: Facultative anaerobes are organisms that survive in the presence of oxygen and use oxygen for…
Q: Which bacterium reduces nitrates in soil to nitrogen?
A: Nitrogen is needed by the organism for producing amino acids. Atmospheric nitrogen cannot be used as…
Q: what is the cause of different species of psychrotrophic bacteria growing in the CTSA medium at 7…
A: They can grow at extreme low temperatures and lead to spoilage of food by modifying the compounds…
Q: hy is nutrient broth considered as a universal growth medium for bacteria?
A: Nutrient Broth is a general-purpose medium for growing a wide range of fastidious and non-fastidious…
Q: d) Since we know this bacterial organism thrives in colder areas of the world, what can be said…
A: Bacteria are present everywhere in the world, including cold environments. Certain types of bacteria…
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 type of bacteria may cause spoilage in coconut water that has been in the fridge for more than…
A: Coconut Water Coconut water (CW) is a slightly sweet liquid made from the endosperm of coconuts.…
Q: How does the biofilm growth mode differ from that ofplanktonic cells? Which growth mode better…
A: Biofilm basically refers to the matrix like a thing that helps the cells to stick to one another. It…
Q: Why do low concentrations of alcohol inhibit Gram-negative bacteria more than Gram-positive…
A: As per our company guideline we are supposed to answer only first question or first 3 subparts of…
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: Bacteria that prefer to grow at room temperature at low pH are: Mesophilic acidophiles…
A: Bacterial growth is influenced by many factors such as temperature, oxygen requirements, pH, source…
Q: How might the bacterial growth curve change if a facultative anaerobe was first monitored for growth…
A: *Facultative anaerobes are bacteria which can grow in presence or absence of oxygen. * oxygen…
Q: Would all microorganisms exhibit the same bacterial growth curve? Why?
A: The bacterial growth curve is a closed curve, it is typical in nature for all microorganisms. All…
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: 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: Diseases that involve biofilm-producing bacteria are serious concern. They are not easily treated…
A: Biofilms are a collective of one or more types of microorganisms that can grow on many different…
Q: A bacterium is inoculated into a medium containing two carbon sources, one of which is the…
A: If a bacterium is grown in a medium containing lactose and glucose, it will first utilize glucose…
Q: What is the function of nitrifying bacteria?
A: Bacteria are a group of prokaryotic microscopic single celled organisms. They live in diverse…
why are psychrotrophic bacteria incubated at 7 degrees?
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- Why are endospore forming bacteria commonly found in soil?d) Since we know this bacterial organism thrives in colder areas of the world, what can be said about the effect of temperature on the growth patterns ofthis bacterial organism? How would increasing the temperature affect the growth constant? e) If the bacterial organism is resistant to antibiotics, how would administering antibiotics affect the growth of this organism?What is the oxygen requirement of this microbe? Thioglycollate Broth -Obligate aerobe=growth only occur at the top band of the broth -Facultative anaerobes= growth uniformly throughout the broth -Obligate anaerobes= growth only at the bottom of the tube -Aerotolerant= growth throughout the tube until just below the surface of the broth -Microaerophiles= growth in a heavy band just below the surface of the broth
- Why do petroleum-degrading bacteria need to attach to thesurface of oil droplets?Why is nutrient broth considered as a universal growth medium for bacteria?How would a facultative anaerobe growth curve change if it was placed in the presence of oxygen environment? If the organism were to be placed in an anaerobic environment during log phase, how would the growth curve look?
- Bacteria that prefer to grow at room temperature at low pH are: Mesophilic acidophiles Microaerophilic alkalophiles Psycrophilic neutraphiles Thermophilic acidophilesWhy do low concentrations of alcohol inhibit Gram-negative bacteria more than Gram-positive bacteria? Explain how the alcohol interacts with: 1) Gram-negative cell wall structures 2) Gram-positive cell wall structuresWhy would it be impossible for gram-positive bacteria to storesulfur as gram-negative sulfur-oxidizing chemolithotrophs can?