Q: Name two or more situations where Koch’s postulates are impossible to complete? In other words, what…
A: Robert Koch defined four criteria for identifying the causative agent of a specific disease, which…
Q: What is an example of an experimental approach for determining whether a beef burger contains a food…
A: Beef burgers served rare or undercooked may contain harmful bacteria that could cause food…
Q: Why is it not safe to assume that two microorganisms with the same G + C content belong to the same…
A: The GC content helps in establishing the relatedness between species when there is a similarity in…
Q: enrichment culture to isolate aerobic and anaerobic nitrogen-fixing bacteria, sulfate-reducing…
A: Enrichment culture: This type of culture containing certain growth media ,allows and favours the…
Q: If a bacterial isolate shows intermediate to moderate resistance to an antimicrobial, how might this…
A: Bacteria are microscopic single-celled prokaryotes that thrive in diverse environmental conditions.…
Q: hat is the advantage of culture-independent analysis over culture-dependent analysis of…
A: An unknown microorganism can be identified and classified in a variety of ways. They are divided…
Q: Why is there a need for an incubator in the lab? How about incubating cultures at room temperature?…
A: The Incubator is an insulated device in which the conditions like temperature, humidity, pH, and…
Q: Why do we need to look up values in the charts for each antibiotic?
A: Antibiotics have definitely transformed the lives of countless individuals by rescuing them from…
Q: What is the methods used for identifying unknown bacteria?
A: Ability of identifying various microorganisms have many important application.For example,in the…
Q: Do we have to do an antibiotic sensitivity test to ensure the result? and what is the type and name…
A: Antibiotic Sensitivity Test: Antibiotic sensitivity testing, often known as antibiotic…
Q: What are Koch's postulates? Discuss the importance of these postulates in the identification of…
A: As per Germ theory of Disease , pathogen ( disease causing agents) are the chief factors behind a…
Q: Why is it necessary to maintain aseptic conditions in microbiology?
A: Aseptic conditions means microbs free environment. Microbs means bacteria, virus and fungi. It may…
Q: Is it acceptable to give a formal name to a microbe that hasn't been isolated and cultivated? What…
A: There are two main microbiology methods used for isolating bacteria from a clinical sample in order…
Q: What are the physical methods of microbial control
A: Control of microorganisms is fundamental to forestall the transmission of illnesses and disease,…
Q: What are the different techniques use to observe the morphology and motility of microorganisms
A: Light microscope is used for determining motility of microorganism or some special morphological…
Q: Why are complex media preferable to chemically defined media for routinecultivation of…
A: Microorganisms require nutrients as an energy source and certain other environmental conditions to…
Q: Can the presence and absence of capsules in bacteria be used to identify unknown bacteria? YES OR…
A: Glycocalyx is present external to the cell wall as an outermost covering of bacteria. It protects…
Q: What are the advantages and disadvantages of observ-ing living-specimen slides and…
A: Microorganisms are the organisms that are not visible to the naked eye. Their size ranges in few…
Q: What are the requirements for Microbial Viability? Describe each of them?
A: Microorganisms or microbes are microscopic organisms that exist as unicellular, multicellular, or…
Q: What are the physical requirements that must be considered when trying to grow microbes?
A: A technique which is used for growing the microorganisms in an in vitro condition is referred to as…
Q: What are the criteria used in the CDC classification of bioterrorism agents?
A: Biological toxins or pathogenic organisms used for terrorist purposes to cause death and disease in…
Q: What is the basis of enrichment culture techniques? Why is an enrichment medium usually suitable for…
A: Enrichment culture media is the one which is used for the growth and isolation of a specific type of…
Q: How can a suspect bacterium be fingerprinted?
A: DNA fingerprinting is a technique for detecting a high number of minisatellites in the genome at the…
Q: What are other methods of measuring the sensitivity of organisms to antibiotic?
A: An antibiotic is a substance that kills or inhibits the growth of bacteria and other microorganisms,…
Q: Why is it critical to be able to determine the overall number of bacteria present in a food sample?
A: Hi, Thanks For Your Question. Answer : Monitoring Of Total Bacterial Count Is Necessary, Because…
Q: finding the relationship between the new and already existing microbe?
A: Microorganisms are microscopic structures that can be seen or studied with the help of a microscope.…
Q: Are you able to identify the lag, log, stationary and death phase in using this growth curve?
A: Microbes grown in a closed or batch culture in which certain conditions are that no nutrients are…
Q: What is one situation where Koch’s postulates are impossible to complete? In other words, what…
A: Robert Koch was a scientist who provided four postulates which were designed to prove that there is…
Q: What is Bacterial Injury in Microbiology?
A: Bacteria produced in pure culture under ideal circumstances are examined in the lab for their…
Q: Suppose you do the Kirby-Bauer test on a hypothetical Staphylococcus species with penicillin and…
A: "Antibiotics" are a type of antimicrobial medicine that is used to treat and prevent bacterial…
Q: Describe the lines of proof Robert Koch used to definitivelyassociate the bacterium Mycobacterium…
A: Robert Koch was a physician and microbiologist. He was the founder of modern bacteriology and he…
Q: How does the differences in the physical and chemical structure of Gram-positive and Gram-negative…
A: The bacterial cells are categorized into gram-positive and gram-negative mainly depending on their…
Q: What biochemical tests did we use to distinguish staphylococci from streptococci?
A: Staphylococcus and streptococcus both occur in cocci shape and both are gram positive organisms.…
Q: Why is E. coli O157:H7 an organism of concern in contaminated foods? The strain is represented as…
A: E.coli is a prokaryotic organism (bacteria) found in intestine of animals including humans, this…
Q: Where/ How did the researchers find the bacterium, which they named Ideonella sakaiensis 201-F6?…
A: Ideonella sakaiensis is a unique bacterial species that is able to break down plastic and it is…
Q: Why is it Koch's postulates cannot be used for the microbe E. Coli. What limitations does E.coli…
A: The virulence and pathogenicity is considered as the ability of bacteria to cause disease. Robert…
Q: What are some of the disadvantages of using natural penicillin for treatment of infections?
A: Antibiotics are antimicrobial substances that control or inhibit the growth of microorganisms,…
Q: Describe what three strategies are used to identify microorganisms?
A: Microorganisms: Microorganisms are tiny organisms that are not visible through an unaided eye.…
Q: Which techniques may be used for viable counting methods of microbial measurements? Explain.
A: To identify the microorganism, it must first be placed into a medium to commence development, and…
Q: What are the advantages and limitations of studying bacteria by means of the Culture method?
A: Introduction Culture:- It is a method of growing microorganisms, tissue cells, or other living…
Q: How are methods of precipitating proteins, such as heat and treatment with alcohol, also successful…
A: Yes they are successful in killing harmful microorganisms.. Precipitation is explain as protein is…
Q: What is G+C content of a bacteria? How it can be determined? Why it is not safe to assume that…
A: GC-content is the percentage of nitrogenous bases in DNA or RNA molecule that are either guanine or…
Q: Which of the following statements describe a culture or molecular technique in the study of…
A: All statements are acceptable in describing a molecular technique or culture in the study of…
Q: With regard to gram-negative enterics, what do the letters O, H,and K stand for?
A: The major classes of antigens which are used in defining strains of Gram negative bacilli are 0-…
Q: What are the advantages and disadvantages of plate count technique over other methods of quantifying…
A: Plate count is a technique in which bacteria are counted by growing on the agar plates. Total…
Q: How is microbial death defined?
A: Microbial Death- Lack of the perfect environmental circumstances constant loss of reproductive…
Q: Discuss the THREE (3) main stages crucial to microbial leaching of copper from a low-grade ore,…
A: Bioleaching involes microorganisms .Main copper minerals include sulfides, (CuFeS2) chalcopyrite,…
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- What are the advantages and disadvantages of plate count technique over other methods of quantifying microbial populations?What is the methods used for identifying unknown bacteria?What is the advantage of using Molecular data compared to plated culture or biochemical techniques in identifying bacterial species, especially for oral microbes ?
- How does the differences in the physical and chemical structure of Gram-positive and Gram-negative bacteria help in the laboratory identification of groups of microbes?Can simple technique be used to identify more than the morphological characteristics of microorganisms? Explain.What type of reaction or lab test differentiates the presence of either staphylococcus bacteria or streptococcus bacteria in microbiology?
- What is Bacterial Injury in Microbiology?What are the different techniques use to observe the morphology and motility of microorganisms?Name two or more situations where Koch’s postulates are impossible to complete? In other words, what factors about a microbe or factors about a disease make it impossible for Koch's postulate to be performed with that microbe or disease?
- What is an example of an experimental approach for determining whether a beef burger contains a food poisoning bacterium?What is the main advantage of using the slide culture technique for identifying molds?What is the purpose of the confirmed test in an experiment designed to test for coliform bacteria?