Q: What is the difference between a mixed culture and a contaminated culture if they both contain more…
A: In microbiology , a bacterial culture is a growth of microorganisms which have been grown in a…
Q: How do you make liquid bacteria culture?
A: It is important for growing more numbers of bacteria to isolate enough plasmid DNA for experimental…
Q: What are the advantages of staining a bacterial preparation before observingit under a microscope?
A: Gram staining is a technique used to differentiate between two groups of bacteria namely…
Q: What advantages do solid media offer for the isolation ofmicroorganisms?
A: Micro-organism are those that cannot be seen by the naked eye, but are visible under microscopes.…
Q: Which type of microscope(s) would be used to examine the following specimens? Explain each of your…
A: 1. Atomic force microscope : The atomic force microscope has formed into a useful asset in primary…
Q: What is a micrometer (μm )? Is it really possible to see microbes with this dimension using…
A: Microbes are often tiny, even when compared to minuscule mammal cells. To observe them, the…
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: If the iodine step in a Gram-staining procedure was omitted, what color would you expect…
A: Gram staining is a technique which is used to identify the bacterial cell type, whether it is gram…
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 kind of medium might you make to selectively grow a bacterium that lives in your gut?
A: MacConkey agar is used as a selective and differential media for differentiating gut bacteria which…
Q: Given a log phase bacterial culture with 1 x 10^6 cells per ml and a generation time of 30 minutes…
A: Cell multiplication is due to the growth which leads to an increase in the number of bacteria over a…
Q: Would lysozyme or penicillin affect pneumoniae?
A: As per the guidelines, we are supposrd to answer only one question in case of multiple posted.…
Q: What conclusion would you draw if the numbers of bacterial colonies in were the same on the control…
A: Bacteria are unicellular and prokaryotic organisms that live in wide variety of environments. It…
Q: Why is oil immersion necessary to see bacteria in the laboratory?
A: Oil immersion technique is used to increase the resolving power of microscope. Both the objective…
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 it is useful to plot the microbial growth from a growing microbial culture?
A: The term microbial growth refers to the growth of a population of microbe, it is an increase in the…
Q: Why are bacterial cells generally stained for microscopic viewing?
A: Staining bacterial cells prior to microscopic viewing is a routine process in most of microbiology…
Q: Why do you suppose endospore-forming bacteria are commonly found in the soil? Suppose your unknown…
A: Endospores are dormant, tough, vegetative structure produced by the bacteria from the Firmicute…
Q: What is the difference between defined media and complex media?
A: media is a solution in which is rich in nutrients. it is very suitable for the growth of microbes…
Q: Which microscopy technique is BEST at determining the presence of physical microbial interaction(s)?…
A: Microbial interactions occur when the transference of molecular and genetic information takes place.…
Q: Why are semisolid media sometimes preferred over slide techniques for evaluating bacterial motility?
A: Semi-solid media are soft media that is used in demonstrating the motility of bacteria and…
Q: temperature and light source affect the number and type of colonies that can be found in the…
A: Microbes such as bacteria, fungi, viruses are grown at the earth's surface. The atmosphere provides…
Q: In the Harada-Mori culture technique, how are you going to dispose the culture tubes? Is it suitable…
A: Harada-Mori culture technique It is a method of incubating fecal material on a filter paper strip in…
Q: hich method for introducing microbes on media uses an inoculation loop and the bacterial sample is…
A: Answer. The four-quadrant streak method is used for introducing microbes on media using an…
Q: What are the difference in the movement of microorganisms under wet mount from hanging drop…
A: There are some plus point for both the techniques like the wet Mount and hanging drop method…
Q: If you had a mixed culture that contained a Gram-negative enteric bacterium and Gram-positive…
A: MSA or mannitol sale agar used in microbiology. It encourages growth of some group of bacteria…
Q: How is true microbial motility distinguished from other kinds of motion like Brownian movement that…
A: Q. How is true microbial motility distinguished from other kinds of motion like Brownian movement…
Q: What is a step-by-step process of preparing and inspecting a microorganism under a microscope?
A: Microbiology is the study of microorganisms that are invisible to the naked eye. The microorganisms…
Q: What makes agar good support for microbial growth?
A: Microbial culture is a method of multiplying microbial organisms by letting them reproduce in…
Q: Explain why some cells are pink and others are purple in Gram-stained bacterial smear.
A: Gram staining is a common method that is used to distinguish two large bacterial groups based on…
Q: a. What can you observe in viewing your stained bacterial slide under the microscope if you fixed a…
A: The staining is a very important process in microbiology that is used to identify specific…
Q: What is Bacterial Injury in Microbiology?
A: Bacteria produced in pure culture under ideal circumstances are examined in the lab for their…
Q: Define the term “colony” as it relates to bacterial growth on solid media.
A: The pure culture techniques are carried out in the microbial laboratories, where the microbes of…
Q: who introduced the use of cotton plug in microbial culture tubes.
A: Cotton plugs are utilized in bacterial specimens and culture mediums. The cotton plugs' primary role…
Q: Of what practical importance are air borne microorganisms to the laboratory workers? What…
A:
Q: Assuming you had a bacterial culture with a concentratoion of 2x10^9 bacteria/mL, whaat volume would…
A: A microbiological culture, also known as a microbial culture, is a technique for growing…
Q: What is a step-by-step process of preparing and inspecting a microorganism under a microscope?…
A: In dark-field microscopy, microbes appear light in a dark background., viruses, macromolecules,…
Q: What type of agar would you use to grow gram negative bacteria
A: Gram-negative bacteria are the bacteria that do not consist of the crystal violet stain and they are…
Q: What medical challenges do biofilms present?
A: Biofilms are microbial colonies that are linked to one another and enclosed in an exo-polysaccharide…
Q: What advantage does the oil immersion objective have over the low power objective when doing…
A: Introduction:- Bacteria are prokaryotic and very small sized organism's . They can not be visualised…
Q: What are the advantanges and disadvantages of using stained preparations for observing microbial…
A: Characteristics of microbes are studied using a microscope by microbiologists. Some microbes like…
Q: How can colony morphology be used in the identification of bacterial species? What are the…
A: NOTE: AS PER OUR GUIDELINES, WE ARE ONLY SUPPOSED TO ANSWER THE FIRST THREE QUESTIONS, PLEASE…
Q: agnification is required to observe microorganisms?
A: A microorganism, often known as a microbe, is a microscopic organism that can be a single cell or a…
Q: How to prepare an agar plate for bacteria? How to include the antibiotics into agar plates? How long…
A:
Q: In preparing bacterial smear, why do we need to pass the slide over the flame?
A: since this is a multi-part question, so I am answering only 1st part. please upload other questions…
Q: Would a syringe filter with a pore size of 0.22 micrometers be able to completely remove all…
A: Filtration refers to the sterilization technique that eliminates the microorganism. The fluid that…
What are the disadvantages of doing a total microbial count by examining wet mounts under the microscope?
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- What is a step-by-step process of preparing and inspecting a microorganism under a microscope?What are the advantanges and disadvantages of using stained preparations for observing microbial cell morphology?What is a step-by-step process of preparing and inspecting a microorganism under a microscope? Please provide an accurate answer.
- How can colony morphology be used in the identification of bacterial species? What are the environmental factors that affect the growth of bacteria? What is agar (or agar-agar)? Is this different from nutrient agar? Why? How is xylol used to clean the lens of a microscope? What may happen if xylol is constantly used for this purpose? For what purpose would you adjust each of the following microscope components during a microscopy exercise? iris diaphragm coarse adjustment knob fine adjustment knob condenser mechanical stage controlWhy is it necessary to cut thin sections of the tissue sample from a specimen using a microtome?Please discuss why staining is important in visualizing microbes under the microscope. What different types of staining methods can be used?
- For a laboratory exercise of basic techniques in microbiology: Gram stain and Microscopy. What are the sources of error in performing Gram staining?What advantage does the oil immersion objective have over the low power objective when doing bacterial examination?Why sometimes specimen may show organisms under the microscope but not appear in the culture media?
- The resolution of a microscope is affected by the wavelength of light used to examine the sample. O 1) True O 2) FalseThree-dimensional images of specimens can be produced using z stacks obtained from confocal microscopes. O 1) True O 2) FalseWhy would specimens viewed with a compound microscope be thin and/or chemically cleared?