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A: An endospore is basically a dormant, tough and non-reproductive structure produced by some bacteria.
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A: Bacteria spoil refrigerated foods.
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A: The culture medium or growth medium is a liquid, solid, or semisolid designed to support the growth…
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A: Agar is the medium which can used to grow the micro organisms in petri plates. The selected…
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A: Pathogens are the microbes that are causing harm to the body.
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A: A plant pathogen is an organism that infects plants. While certain plant infections can affect…
Q: What medical conditions commonly predispose patients to mycoticinfection?
A: Fungi are the multicellular eukaryotic organisms. They are heterotrophs and contain chitin in their…
Q: Why is heat an effective sterilizing agent?
A: Heat Energy : It is a form of energy which takes place by the movement of the minute particles…
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A: The process of performance of direct examination can be done by utilizing the combination of…
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A: Bacillus cereus it is gram positive, rod shaped , facultative anaerobic, spore forming, motile and…
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A: Sometimes spore forming mesophilic bacteria found in food ingradient, mainly in dairy product. It…
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A: Illness caused by food contaminated with bacteria, viruses, parasites or toxins are called food…
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A: Nosocomial infections are those that the patient develops during hospitalization or erupts within 14…
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A: A culture medium is just water and nutrients that support microbic growth. Primary culture media for…
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A: Sterilization: Sterilization includes the complete wipeout of all microscopic life on a surface.…
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A: Candida is a yeast genus that is responsible for the majority of fungal infections globally.…
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A: Sterilization is the process of killing or deactivating all forms of microorganisms and spores.…
Q: Why is heat a highly effective sterilizing agent? (Answer in not more than 2 sentences)
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A: Coconut Water Coconut water (CW) is a slightly sweet liquid made from the endosperm of coconuts.…
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A: Microorganisms are cosmopolitan in nature, which means they are present everywhere- in air, on…
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A: Antiseptics are the chemical substances that inhibit the growth or kill the microbes that reside on…
Q: Which microbe is grown for use as protein – rich food?
A: Proteins are polymers made up of polymers of amino acids, which are structural units. They act as…
Q: Why does saliva not serve as a good microbialgrowth medium?
A: Saliva is the watery, frothy substance that is produced in the mouths of some animals, including…
Q: How is UV radiation a good type of control mechanism against microbial growth? Please explain what…
A: UV radiation is a kind of non-ionizing radiation released by the sun and other manmade sources.…
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A: Agar consists of two polysaccharides, agarose and agaropectin, but agarose making up about 70% of…
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A: Water activity (aw) is basically a term describing the availability of water to microorganisms. It…
Q: Why are psychrotrophic bacteria of concern to those in the food-service industry?
A: Psychotrophs are mesophiles. They can grow at a low temperature such as 4℃. And, their optimal…
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A: Preservatives:It is a substance that is used to protect the food products, wood, and other…
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A:
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A: Biofilms are a collective of one or more types of microorganisms that can grow on many different…
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A: Answer- Wood does have natural antibacterial properties. The organism of bacterium like- Ideonell…
Q: Which of the following strains of pathogens has the lowest incidence?a. VRE b. VRSA c. MRSA d. MRSE
A: Incidence means the rate or frequency of occurrence of a disease. Pathogen is any foreign agent or…
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- How many times more resistant were B. megaterium spores than S. epidermidis vegetative cells?Kousei works at a company that produces sweetened condensed milk. If one or more samples exceed 1 x 10 fungal CFU/mL (or CFU/g) the entire lot produced will be rejected. Kousei's boss, Kaori, wanted to know if the lot passed the FDA guidelines. The following fungal counts were obtained after serial dilution and spread plating of the samples: Type of Dilutions plated 10-4 10-3 105 Colony Plate 1 Plate 2 Plate 1 Plate 2 Plate 1 Plate 2 Plate 3 166 Fungi 160 155 45 40 1 11 Based on the fungal counts obtained, will the lot be rejected? No, because the computed CFU/mL is 4.3 x 10^5 No, because the computed CFU/mL is 4.1 x 10^5 Yes, because the computed CFU/mL is 4.3 x 10^6 Yes, because the computed CFU/mL is 4.1 x 10^6 Yes, because the computed CFU/mL is 1.1 X 10^7 Information is lacking so CFU/mL cannot be computed Plate 3 37 Plate 3 7How is the pathogen, shigella spread?
- Maargerines made from plant oils are healthier, since they are hydrogenated for spreadability? A)True B)falseWhat medical conditions commonly predispose patients to mycoticinfection?In order to isolate fungal culture from patients’ sample in the lab, a growth media specialized for fungal growth is required. Give an example of such fungal growth media, include the media’s name, its components, and specify which component directly select against bacterial growth.
- Why is chloramphenicol added to the fungal culture?A glycocalyx functions in all of the folowing ways EXCEPT: a) adherence to non-living surfaces, such as rocks Ob) motility c) improved virulence (ability to evade phagocytes) d) formation of biofilmsWhy do yeasts generally have to be cultured for longer periods than most bacteria? Can bacteriological media be used for the cultivation of molds? Explain your answer. What is the difference between vegetative and aerial mycelia? What are the three classes of antifungal drugs based on their mechanism/site of action? Describe the mode of action of each class. Name one fungal virulence factors that promote fungal colonization. Explain the mechanism. Name one fungal virulence factors that damage the host. Explain the mechanism.