In lab, sterile technique is important for what reason? none of the answers are correct to ensure that we have not introduced outside microbial variables to prevent our samples from being contaminated with human samples all of the answers are correct to prevent us from getting sick with microbes
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A: Subculturing, also known as passaging cells, is the process of removing the media from an old…
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A: All of these statements are TRUE.
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A: According to their principle of mechanism antibacterial drugs have been divided into several…
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A: Biohazard is defined as any biological substance that can pose or cause a threat and harm to biotic…
Q: Prokaryotes are all around us. What experiment can be Developed to visualize these microbes from an…
A: Prokaryotic cells are single-celled having unicellular organisms.
Q: microbial growth
A: The control of microbial growth may involve sterilization, disinfection, antisepsis, sanitization,…
Q: In a short paragraph explain which is more effective at killing microbes: autoclaving or freezing.
A: The mechanism of killing microbes is known as sterilization. The sterilization is an important…
Q: Which of the letter labeled microbes is exhibiting gamma-hemolysis? O Both Microbes A and B O…
A: Blood agar is an example of enriched medium that has multiple nutrients and is used as a basal…
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A: Industrial microbiology is the branch of biology that deals with the commercial-scale production of…
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Q: When heat treatment is used as to control microbial growth, what is the immediate impact of this…
A: Heat treatment to a microbe changes its macromolecules and as temperature increases macromolecules…
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A: Microbes include single or multicellular organisms which are not visible to the unaided eye. Some…
Q: Defined the following Pure culture Colony Fill in the spaces : 1- Examples of cultural…
A: A colony of bacteria is made up of millions of identical bacterial cells, each originating from one…
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A: * survival and growth and its reproduction are influenced by physical and nutritional factors in its…
Q: In a clinical laboratory, all microbes contained in a clinical sample are isolated and identified.…
A: Clinical microbiologists identify different bacteria present in a sample and isolate them based on…
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Q: Which of the following prevented an aerotolerant anaerobic, mesophilic and halophilic bacterium from…
A: When the bacteria is aerotolerant, mesophilic and halophilic bacteria, we can stop the contamination…
Q: We use salting and freezing to preserve our food against bacteria. Explain why is food preserved…
A: Food preservation refers to the practices of food processing that reduce the deterioration of food…
Q: Secondary metabolites of microbes are formed during thephase of growth.a. exponential b. stationary…
A: Bacteria grows asexually by binary fission which includes the synchronous growth, biphasic growth…
Q: “Salt agar” is a type of ______ medium for culturing some microbes and not others
A: Salt agar encourages the growth of certain bacteria while inhibits others growth in the same medium.…
Q: The clear zone around an antibiotic disk Multiple Choice is a plaque indicating the bacteria got…
A: Antibiotics are the drugs that are synthcised with the aim to kill, inhibit or eliminate the…
Q: Explain how microbial agents A through D in the following diagram compare in effectiveness against…
A: It is used to determine the susceptibility of a given test organism (clinical) against a range of…
Q: Bacterial growth depends on many environmental factors, including the temperature of the…
A: The term "aseptic method" refers to a combination of medical practises and procedures that help…
Q: how is UV radiation a good type of control mechanism against microbial growth?please expalin what…
A: Humans have used various physical methods of microbial control for food preservation. Common control…
Q: What are the conflicts over spontaneous generation of microorganisms? Describe the golden age of…
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Q: Which of the following would be the best example of the rapid growth rate of microbes impacting…
A: Bacteria usually grow in cold or warm temperatures but under favorable environments, they will show…
Q: The survival, growth and reproduction of microorganisms are influenced by physical and nutritional…
A: *The survival and growth and reproduction of microorganisms are influenced by physical and…
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A: Usually, the pesticides and the fertilizers are used by the farmers in their fields. The…
Q: Which of the following regarding controlling microbial growth is true? a) Microbial death rate…
A: Microbes are small organisms that may cause diseases.
Q: giving examples to illustrate your answer define both selective media and enrichment media as might…
A: For research purposes every microbiologist must eventually grow bacteria in the laboratory.…
Q: Which of the following best describes the pattern of microbial death? O Not all of the cells in a…
A: Bacterial populations die at a constant logarithmic rate. Microorganisms were previously considered…
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- You have learned many different techniques so far this semester that allow us to identify pathogenic microbes in the clinical setting. Why do you think rapid methods are so helpful? Why are traditional tests such as metabolic tests not always used to ID clinically important microbes?A chemical, produced by a microbe to inhibit the growth of other microbes, is isolated and then modified in a chemical reaction in the laboratory. Which of the following terms would most accurately apply? O Synthetic O Antibiotic O Phenolic O Microbistatic O OpportunisticWhy is there a need for an incubator in the lab? How about incubating cultures at room temperature? How can this affect microbes?
- Why is it important to use sterile practices when working with microorganisms?There are so many microbes in a single mL of culture, it is very difficult to perform one dilution to produce countable cells. Microbiologists need to perform a dilution series, where multiple dilutions are performed in sequence to arrive at the correct dilution. Dilutions are cumulative. Multiple the series of dilutions together to find the final dilution value. If 3 serial dilutions are performed, each with a value of 0.01, what is the cumulative dilution? Express your answer as an exponent, e.g. 0.1 would be 1e-1 and 0.01 would be 1e-2Joseph, being a know-it-all, told Mary that her method would not include all microbes. To demonstrate this, he took another 10g sample of Mary's garden and added starch. After the 1-week incubation time, he performed the same serial dilution scheme as Mary but used pour plating instead of spread plating. Shown below are the counts that he obtained after the incubation period. Compute for the CFU/g given the data below. Be sure to show complete solutions and box your final answer. Final answers should be expressed in 3 significant figures. Tube 1 135, 129 Tube 2 9,7
- Joseph, being a know-it-all, told Mary that her method would not include all microbes. To demonstrate this, he took another 10g sample of Mary's garden and added starch. After the 1- week incubation time, he performed the same serial dilution scheme as Mary but used pour plating instead of spread plating. Shown below are the counts that he obtained after the incubation period. Compute for the CFU/g given the data below. Be sure to show complete solutions and box your final answer. Final answers should be expressed in 3 significant figures. Tube 1 135, 129 Tube 2 9.7In An Aseptic Technique, what are the uses of bunsen burners in the working area when performing a microbiological experiment? What equipment is used to accelerate the growth of microorganisms in the experiment? (b) What is the setting of the equipment and explain briefly the reason behind the setting?Why do you think rapid methods so helpful to identify pathogens microbes in clinical settings. Why are traditional test such as metabolic test not always used to ID clinically important microbes Please make it simple and short.Thanks
- The thermal death time in an autoclave at 121oC for a microbial culture was thirteen minutes. The thermal death time for another sample of the same culture in a hot-air oven at 121oC was twenty-one minutes. Use your knowledge of what thermal death time measures to identify which method of heating was more effective against this microbial culture. The hot-air oven treatment was more effective. The autoclave treatment was more effective. Both thermal death times were equally effective. Not enough information is provided to determine effectiveness.In the laboratory, autoclaving is required to prepare media for the growth of microorganism. What type of method of control does this involve? Dry Heat Moist Heat Chemical Radiation All of the optionsWhich one of the following microorganisms would you use as a quality control check to ensure that your sterile technique method is properly working? S. aureus, a gram-positive bacterium E. coli, a gram-negative bacterium B. cereus, an endospore-forming bacterium M. leprae, an acid-fast bacterium T. pallidum, a flagellated, disease causing bacterium