Q: What is the purpose of sealing the flask with a balloon? What product is captured in the balloon?
A: Fermentation is the process of ATP generation by the microorganism. Carbohydrates are the substrate…
Q: What are the expected problems in the centrifuge in case of imbalance of samples ? *
A: Centrifugation is a process of separation of molecules from mixtures by applying centrifugal force…
Q: Why does the oxidase test have to be read quickly?
A: The Oxidase test is a biochemical test for the identification of bacteria. The test is mainly…
Q: ç00 HN-CH-CH," CHR CHR A. В. D.
A: Biuret test is performed in order to detect the presence of peptide bonds.
Q: If the test method used in the laboratory varied from the specification, how will it affect the…
A:
Q: How would you determine the contents of the test tubes if all of the samples were transparent?
A: The study of chemical reactions that occurs within living organisms is called biochemistry. This…
Q: What is the chemical basis of Molisch test?
A: Molisch test is a colorimetric method that is used to detect the presence of carbohydrates in a test…
Q: What is a pure culture?
A: Introduction Culture is referred to th process of growing the cell outside the animal or plant body…
Q: What are the advantages and disadvantages of the filter method in the analysis of water samples?
A: Utilising the membrane filter method, test is gone through the layer utilising a filter funnel and…
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 each agar plate contained 20 ml of LB agar and had an ampicillin concentration of 150 ug/ml, what…
A: Given data: Each plate contains- LB agar=20ml Ampicillin= 150 micrograms per ml. Amount of…
Q: What is the use of heat in Seliwanoff’s, Benedict’s and Barfoed’s tests?
A: The Seliwanhoff's, Benedicts's, and Barfoed's tests can qualitatively identify and distinguish among…
Q: yield
A: The Dische's test is a chemical test that is utilized to detect the presence of DNA in a solution.It…
Q: What force was responsible for the movement of substances through the filter paper?
A: Filter paper is made up of cellulose and thus functions as permeable membrane and movement of…
Q: How can polarography detect the analyte?
A: Jaroslav Heyrovsky discovered polarographic method Polarography is a simple method in analytical…
Q: Explain the reason for the effect on mass spectroscopy method of diagnosis by culture conditions.
A: Mass Spectrometry is an analytical method. It is used to quantify known materials to identify…
Q: What are the possible sources of contamination that may result during the streak plate procedure?
A: The streak plate procedure is used to isolate microbial colonies in pure form. During the procedure,…
Q: Which chemical urine test strip correlates with the presence of Casts in a Urine specimen?
A: Multistix is the commonly used urine strip that has different patches of test on a single strip.…
Q: What happened when potato strip placed in salt water?
A: 1) A solution mixture that exhibits a higher concentration of salt than the surrounding medium. Then…
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: Write down the materials , reagents ,instruments, principle and procedure for Grocott’s hexamine…
A: The Grocott's hexamine silver stain is used to demonstrate fungi. It is a part of histopathology…
Q: What are the precautions that should be observed during the experiment for making soap
A: Soap is a fatty acid salt that is used in many cleaning and lubricating goods. Soaps are surfactants…
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: Why does the oxidase test must be performed from blood agar or another medium without a fermentable…
A: Biochemical tests are used to identify microbial diversity based on variations in the biochemical…
Q: What is electroporation technique?
A:
Q: If there is 50 bacterial colonies on a 1:1000 dilution streak plate. How many cfu/mL are there?
A: Introduction: A CFU stands for colony-forming units. It is a unit that we use for estimating the…
Q: Why is the incubation temperature criticalwhen using the Filter Method when testing water samples?
A: Incubation temperature is critical for bacterial growth if this temperature is too high or too low…
Q: What are the limitations in the use of potometer?
A: A potometer is also known as transpirometer. As the name suggests, the transpirometer is used to…
Q: What is the significance of reporting the color and consistency of a stool specimen
A: Stool is the undigested portion of food intaken.It consists of waste products that are eliminated…
Q: What is the purpose of adding sodium bicarbonate to a culture medium?
A: >> The purpose of adding sodium bicarbonate to animal culture medium is that it acts as a…
Q: Why is it necessary to perform a plate count in conjunction with the turbidimetry procedure?
A: Plate counting is one of the most fundamental techniques used in microbiology. It is used to…
Q: What purpose was served by filtering the milk sample after the addition of acid?
A: Milk is a white color liquid which is consists of various proteins and vitamins. Milk is an…
Q: Explain the results of the test demonstrated in the picture.
A: The picture is showing the sample as well as control for finding the results. The color is used to…
Q: The technique of bombarding specimens with neutronsand measuring the resultant gamma ray emissions…
A: Neutrons are the subatomic particles present in the nucleus of an atom.
Q: Why do we add powdered zinc to the nitrate reduction test?
A: Bacteria are prokaryotic simple unicellular organisms. Their mode of respiration may be aerobic or…
Q: Why are only few drops of CuSO4 solution added during the biuret test?
A: Biuret test also known as Piotrowski's test, is a chemical test used for detecting the presence of…
Q: What is the purpose of Durham test ?
A: In the carbohydrate fermentation test, we determine whether the bacteria are able to ferment a…
Q: What made the pepper on water move upon the addition of the dishwashing liquid?
A: Water molecules are composed of two hydrogen molecules covalently bonded to one oxygen molecule.…
Q: what is the purpose and objectives on doing nitrious acid test?
A: Amines are the compounds and functional groups having a basic nitrogen atom with a lone pair of…
Q: Why should the specimen be albumin free when performing the chloride test for urine?
A: Urine specimen should be free from albumin when performing the chloride test due to the following…
Q: What steps are required to verify both contact with the sterilant and sterilization of an instrument…
A: Sterilization is the process that eliminates, removes, kills or deactivates the microorganism such…
Q: Why is cobalt chloride paper used in the experiments?
A: The indicators are used in the experiment to detect the distinct observable change. Many types of…
Q: How many joules are required to boil 150 grams of water?
A: To boil an amount of water, an amount of heat is required to increase the temperature is dependent…
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: why is it necessary to use oil immersion on oil objective ?
A: The oil immersion is the technique of light microscopy, which is used to increase the resolving…
Q: What are the immersion media that need to be used?
A: Immersion media is used to increase the numerical aperture of the microscope by a factor equal to…
Q: What is Gunning’s Test?
A: Quantitative assays are assays that give accurate and exact numeric quantitative measure of the…
Q: What was the direction of centrifugation (which fractions correspond to the bottom of the centrifuge…
A: Centrifugal force : centrifugal force is the force that applies on a particle moving in a circular…
What is the purpose for testing a specimen for hydrogen sulfide production?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- What color change of solution will the Dische test yield?When conducting a flame test for sodium iodide, is the result positive or negative?If the test method used in the laboratory varied from the specification, how will it affect the results? What factors contributed to possible errors in laboratory results?
