Q: What is a mixed culture? A contaminated culture?
A: A microbiological culture, or microbial culture, is a technique for increasing microbial creatures…
Q: What is the purpose of Thick smear? Purpose of Thin smear?
A: Blood smear:-Also known as peripheral blood smear. -Blood smear has many different uses ranging from…
Q: What is the logic behind testing for E. coli to detect fecalcontamination of water?
A: Bacteria are unicellular prokaryotic organism that maintains a definite shape since it contains the…
Q: What is the chemical basis of the Xanthoproteic Test? Give the chemical reaction involved.
A: Protein is a nitrogenous organic macromolecule that is essential to human health. It is responsible…
Q: What is the media used in Catalase test and its expected results?
A: Catalase is an enzyme that is found in the cell in most of the organism that protect the cell from…
Q: Does a positive presumptive test mean that the water is absolutely unsafe to drink?
A: In microbiology, the presumptive test is used to find out whether gas-forming lactose fermenters…
Q: Why do the results for the confirmed test represent faecal coliform in the analysis of water using…
A: MPN is Most probable number. It is commonly applied for testing the quality of water.
Q: if the biuret reagent was allowed to stand for 1 hour, what would the effect on the accuracy of the…
A: * biuret test is also called as Piotrowski test used to detect presence of peptide bonds. *In…
Q: What is the differece between disinfection and sterilization? What is the dfference between…
A: Disinfection and sterilization are essential for ensuring that medical and surgical instruments do…
Q: Is the Triple-Sugar Iron Agar (TSIA) a complex or defined medium? Explain based on its composition.…
A: A growth medium is a also known as a culture medium which can be solid, liquid, and even…
Q: What are the advantages and disadvantages of the viable plate count method?
A: Microbiology is the branch of science that studies microscopic organisms. As microorganisms are not…
Q: How is the precipitation of proteins by alcohol applied in the fixing of tissues for histological…
A: Histology is generally the study of tissue types for identification and diagnosis purposes for cell…
Q: What are high level disinfectants? What is an example of one? What is the method of action and the…
A: Disinfectants are chemicals that are used to kill the microorganisms present in the surroundings.…
Q: Does a positive presumptive test mean that the water is absolutely unsafe to drink? Explain
A: Water is tasteless, transparent, inorganic. Colorless, and odorless chemical substance. Its chemical…
Q: What is the importance of adding NSS and Iodine in stool specimen for smears? Compare the two
A: Stool examination is required any abnormalities in gastrointestinal functioning
Q: Is colistin Naladixic acid agar selective and/or differential? Explain
A: C-CNA (Columbia-CNA Agar) is a form of selective media that favours Gram-positive bacteria.
Q: Which medium is used for indole test and Coagulase Test?
A: Biochemical tests are used to identify microbial diversity based on variations in the biochemical…
Q: what are the patient preparation reminders in direct fecal smear test?
A: The stool is used for the differential diagnosis of several infections and disorders such as…
Q: The statement, “In the laboratory, a sterile inoculating loop is moved across the agar surface in a…
A: The technique is streak plate technique. Streak plate method is a pure culture technique which helps…
Q: What is the difference between a Hemin test and a Benzidine test?
A: Hemoglobin is a blood protein that is responsible for oxygen transport in the tissues. Hemoglobin…
Q: What settings and time are normally used for sterilization in an autoclave?
A: The fundamental rule of steam sterilisation as cultivated in an autoclave, is to open every thing to…
Q: What is the significance of reporting the color and consistency of a stool specimen? Explain…
A: One of the most crucial aspects of the treatment process is the diagnosis. They’ve ordered when…
Q: What is the result of Staphylococcus epidermidis in the TSI agar test?
A: Bacteria are microorganism that most commonly occur in the soil, air, water and in adverse…
Q: What is the media used in Urease Test and expected results?
A: Urease test is defined as a biochemical test that distinguishes the basic alkaline fermentation of…
Q: What are the clinical significance of red, black, and gray colored stool specimens?
A: Stools are collected to test several disease conditions like liver disease ,kidney disease , any…
Q: What is the principle of pettenkofer's test in detetecting the presence of bile salt in the urine…
A: The chief components of bile juice are the bile salts. Bile is a pigmented fluid having the color…
Q: Name the frequently used stains in blood smear preparation. Describe briefly and give their specific…
A: Any deviation from the normal is the diseased condition. The disease is caused by many reasons.…
Q: If you did the multiple-tube technique, list one advantage and one disadvantage of each method of…
A: Water from various sources obtained for routine testing were analyzed by Swedish standard methods…
Q: What is the coliform test when is it used? What is its purpose? How does it function? What are the…
A: All water that is naturally exposed to the atmosphere, such as rivers, lakes, and reservoirs. It is…
Q: Outline in detail the procedure for celloidin embedding .
A: Embedding is that the method during which the tissues or the specimens are capsulate in a very mass…
Q: What items are considered semi-critical and what is their level of disinfection in the Operating…
A: A hospital is a place or health care institution that provides care and treatment to the patients…
Q: Of what practical importance are air borne microorganisms to the laboratory workers? What…
A:
Q: What is the most difficult type of microbial cell or structure to kill? What methods can be used to…
A:
Q: What is the antimicrobial removal device (ARD) blood culture system? Why is it important?
A: The blood culturing system helps in the identification of the pathogens that is present in the blood…
Q: Give a vivid outline of the Standard operating procedure of neutralization test.
A: The neutralization test is a diagnostic test helps to measure the patient's ability to protect cell…
Q: operties of the Snyder deep media allow us to detect susceptibility to dental caries?
A: Dental caries (tooth decay) is injury to enamel of tooth that be converted into little holes or…
Q: What items are considered non-critical and what is their level of disinfection in the Operating…
A: The process that eliminates all pathogenic microorganisms, is known as disinfection. This process…
Q: What microbe requires serum components to be added to the growth medium?
A: Introduction Microorganisms:- An organism that can be seen only through a microscope, They live in…
Q: What kinds of organisms may be plentiful in a milk sample, yet give a negative reductase test?
A: Methylene blue reduction test is based on the principle of oxygen reduction by increased microbial…
Q: Other than the PYR test, what is another use of the PEP reagent?
A: PYR is a colorimetric method used to detect the presence of pyrolidonyl arylamidase activity in a…
Q: What factors influence the size of the zone of inhibition in antimicrobial susceptibility testing?
A: Zone of inhibition test is also known as kirby-bauer's test. It measures antibiotic susceptibility…
Q: how is the 0.5 McFarland standard prepared? What is the role of this standard in performing…
A: Antimicrobial susceptibility tests (AST) are microbial sensitivity tests that determine the…
Q: What appropriate method should be used in controlling microbial growth in each of the following;…
A: The growth of microorganisms is controlled by means of physical agents and chemical agents. Physical…
Q: which kind of sample gives positive result for Molish test?
A: It is a chemical test which is named after the botanist Hans Molisch. This test involves the…
Q: After a urine culture, 95 colonies are counted on a plate inoculated with 1 uL of urine samplpe.…
A: The CFU count gives us the viable number of cells present in the sample.
Q: What method can be used to achieve sterilization?
A: It is required to describe the method to be used to achieve sterilization.
Q: what practical importance are air borne microorganisms to the laboratory workers? What precautions…
A: Laboratories are the areas where lot of experiments and research is performed. It deals with lot of…
What is the most commonly used fixative in stool samples and why?
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- What is the principle involved in mucic acid test?Why Purified synthetic alcohol is preferred for level vial?What is the most commonly used fixative in stool samples and why? Why is staining of stool samples very important in identifying parasites? Why is direct fecal smear a routine procedure in the parasitology section?
- What is the importance of adding NSS and Iodine in stool specimen for smears? Compare the two.What is the coliform test when is it used? What is its purpose? How does it function? What are the advantages and disadvantages of utilizing the coliform test?What is the purpose of adding sodium bicarbonate to a culture medium?