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: create a serial dilution from a 1.5 x 10^8 CFU/ml stock solution that will give you 1500CFU/ml when…
A: Serial dilution is the technique of step-wise dilution of a sample. It allows a uniform and…
Q: Using a pipette, add 2 mL of suspended DEAE SEPHAROSE (anion) resin to a chromatographic column.…
A: DEAE Sepharose matrix is used in Anion exchange column. In the given method power of salt strength…
Q: O The job of splitter in GC is taking part of the sample. O Column in GC should be placed in a…
A: Introduction Splitter as the name suggests splits the sample. It controls the amount of sample that…
Q: J A positive result for Fohl's test is the formation of a black precipitate in the form of lead. O A…
A: Fohl's Tests - This test is performed to detect the presence of amino acids containing sulfur. The…
Q: If 0.1 ml is added to 99.9 ml medium, this results in a dilution of: Select one: а. 10-3 b. 10-4 С.…
A: Dilution is a process of decreasing the concentration of solute present in a solution. Dilution is…
Q: When one uses Benedict’s reagent added to UNKNOWN samples taken and added (as a liquid) by a pipette…
A: Sugars capable of reducing ferric or cupric ions are called reducing sugars. All monosaccharides…
Q: Which of the following is the test for Methionine A. Biuret Test B. Ninhydrin Test C.…
A: since you've posted multiple questions, only the first one will be answered. before addressing the…
Q: Choose the one answer that fits best. Which of the following statements regarding the proper…
A: Micropipettes are used in the laboratory to transfer very little quantity of liquid. Parts of Micro…
Q: You requested the following media/reagents for your unknown. What are you testing for with each…
A: The majority of bacteriological culture media are available commercially as pre-made or as bases…
Q: What is the most efficient disinfectant of the following ( Alcohol, chlorine, soap ,hijyn), and…
A: Disinfectants are chemical agents that are built on inert surfaces to inactivate or kill…
Q: 1,500,000 units of an antibiotic if the elixir contains three million units per fluid ounce?
A: Elixir An elixir is sweetened alcoholic solution of alcohol containing a medicinal drug with syrup…
Q: MATERIALS: Potato Thermometer Test Tubes Bunsen burner and tripod set up Distilled water 0.1%…
A: Polyphenoloxidase ia a copper containing enzyme which catalyses the oxidation of di or tri hydroxy…
Q: 1. One mL of sludge was added to a 99 mL dilution blank. Three 1/10 dilutions were then made. From…
A: CFU/ml represents the number of colony-forming units in the sample. It gives us the estimation of…
Q: An unknown sample was tested if there is a presence of lipid, after the test it shows that it is…
A: A group of organic compounds includes lipids that are insoluble or poorly soluble in water.…
Q: 1&3/4 tbs po BID x 7 days #QS How many milliliters should the pharmacy dispense?
A: Medications help in treating the underlying medical illness in an individual. But, for them to be…
Q: The materials use for embbiding sample in freezing microtome is O epoxy epon 812 O wax O water…
A: Introduction A microtome is a tool that is used to cut the thinnest possible section of material to…
Q: m depth in d
A: Duke’s bleeding time test can be defined as 3-4mm deep pricking of the skin through a lancet or…
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: Construct a table showing the composition, advantage and disadvantage of these Platelet Diluting…
A: The fluid used as diluents must be isotonic, too have a certain high gravitational pull barrier cell…
Q: Explain the clinical significance that could be associated with each reagent on the urine test strip
A: A urine test strip is a basic diagnostic tool which is used to measure pathological changes in the…
Q: Calculate the number of PFU/ml in the stock bottle. 1.0 ml 1.0 ml 1.0 ml # 1 # 2 # 3 99 ml 99 ml 99…
A: PFU is also called as plaque forming unit. It is a bacteriophage capable of productively infecting a…
Q: Explain why the following step are necessary during subculturing: Flaming the neck of…
A: Aseptic technique-Aseptic technique should be observed whenever microorganisms are transferred from…
Q: Chromatography is not used to separate mixtures. O True O False
A: Introduction There are various biochemical techniques which is used to separate the components of…
Q: General Concept: Match each test with the substance detected Match each test with the substance it…
A: There are several tests available to detect different substance in any food products or other…
Q: A carbohydrate sample reacts positively with all test reagents except for Lugol's. The sample could…
A: Carbohydrates are the chief biomolecules which act as energy source. Most of the body cells depend…
Q: Idenitfy the statements whether they are TRUE or FALSE 1. You should use P-20 micropipettes to…
A: INTRODUCTION Spread plate : A liquid broth of bacteria is spreaded on a solid agar suface so that…
Q: To achieve a hundred fold dilution you would add _____ microliters of sample to the appropriate…
A: The dilution method is used to achieve the desired concentration of the sample in a tube or a…
Q: The volume is need to prepare 100 ml of 0.1 N form HCI is ------ml, if you know sp.gravity =1.18 and…
A: Below is the solution to the question.
Q: what is oil immersion and why is it used
A: Light microscope is a microscopic instrument which uses visible light and magnifying lens to to view…
Q: Figure 1 show the shape of the peaks in gas chromatography that causes loss of column efficiency.…
A: Gas chromatography is a novel analytical technique used in analytical chemistry to separate the…
Q: All the following products must undergo sterility testing EXCEPT: Oral tablets Injections…
A: The healthcare industry uses various medical equipment and instruments that aid in the treatment of…
Q: the image contains results of the fluid thioglycolate medium tests. Please explain the results and…
A: Fluid thioglycolate medium test It is a multipurpose and enriched test. It is a differential medium…
Q: What is the estimated size of the specimen under a 10x10 ocular micrometer under HPO? (Take note:…
A: The specimen size can be calculated by using the number of ocular units occupied by it. Here simply…
Q: Actual resut or product Name of test Test compound Reagents used Formaidehyde Benzaidehyde Tollen's…
A: The chemical group that consists of a carbonyl-carbon atom and a carbonyl-oxygen atom that are…
Q: A sample of pond water is tested using the most probable number method. There are 3 positive tubes…
A: Given , 10 mL - 3 positive tube 1 mL - 1 positive tube 0.1 mL - 1 positive tube
Q: Chemical formula of the precipitate or positive result of the following: 1. Biuret test 2.…
A: Biuret test, also known as Piotrowski's test, is a chemical test used for detecting the presence of…
Q: Suggest one reason why syringes are used in vitamin C content of food and drink investigation…
A: A surgical instrument that allows to administer or remove the fluid. A medicinal syringe is made up…
Q: If you prepared a tube with 10-2 dilution and from this 0.1 ml ia taken into 9 ml medium, the new…
A: Given Initial concentration 10-2 Volume taken = 0.1ml Volume added = 9 ml Find final dilution…
Q: Test for the Components of Milk A. Test for Casein PROCEDURE: In a test tube, place pinch of…
A: Casein is a group of related phosphoproteins. These proteins are regularly found in mammalian milk.…
Q: Solubility Test Ninhydrin test iodoform test Observations + or - no colored spots on filter paper…
A: Asked : Fill the table with + or -
Q: When analysing blood samples for alcohol it is often best to use headspace gas chromatography.…
A: Headspace gas chromatography uses headspace gas from the top or head of a sealed container…
Q: Why should be avoided boiling more than 5 minutes in Barfoid test?
A: Barfoed test is carried out to detect the presence of monosaccharides in the sample. This test also…
Q: TEST ONE: When one uses Benedict’s reagent added to UNKNOWN samples taken and added (as a liquid) by…
A: Biomolecules are organic compounds produced by living organisms. They play important function as…
Q: Granulation of powder is an essential step in pr of all types of tablets [] True
A: Tablets are solid dosage unit. It consists of active substances in the powder form and can be…
Q: add 2.75 mL out of 5.0 mL of an undiluted sample to 125.25 mL. ad, you add all 5.0 mL to the 125.25…
A: We should we the formula to solve this question: Dilution factor = Final volume of the…
Q: Explain each type of anti-fouling system (application and procedure) Electrolytic system Chemical…
A: Anti fouling is a coating which can be done on the hull of any ship It prevents the overgrowth of…
Q: Desired Desired Initial Volume of Stock or Volume of Concentration Volume Concentration Previous…
A: In the question, we are given a table in which we know the desired concentration, desired volume and…
Why an equal volume of air is injected when performing self-saleability test for rubber closure of a vial?
Step by step
Solved in 2 steps
- Chemical formula of the precipitate or positive result of the following: 1. Biuret test 2. benedicts test 3. chloridesIn the spread plate method, why is the volume plated usually limited to not more than 0.1 mL?Draw the letter "e" in a Low Power Objective (LPO), High Powe Objective (HPO), and Oil Immersion Objective. Thank you, keep safe!
- Can you explain on your own words why the thermometer should not be shaken rigorously to lower the reading to zero before using it?How many CFU per ml are there in the original sample using the following dilution and platingseries? Make sure to label all dilutions that were done.Which among the following statements is correct? O A positive result for Fohl's test is the formation of a black precipitate in the form of lead. O A positive result for Millon's test is characterized by the formation of a red-colored precipitate or solution. O Both statements are correct Both statements are incorrect
- When conducting a flame test for sodium iodide, is the result positive or negative?A bacterial suspension was diluted and 0.1 mL of each of the dilutions was plated in duplicate. The following results were obtained. What was the original concentration? Dilution CFU Counted CFU Counted 10-2 29 24 10-3 1 3 10-4 0 0After placing sample in this instrument, what are the names of two fractions in the tube (choose all that are correct)? ruer O Pellet OBase O Supernatant OFluid O Precipitation
- If you had a cell suspension of 2.5 x 10^4 cells/mL and plated 100uL into each well (4 wells), how many cells were added per well?Design a serial dilution of a sample to achieve a A) Final dilution of 10-4 using 9.0 mL blanks B) Final dilution of 10-6 using 99 mL blanks C) Final dilution of 10-6 using 9.0 mL blanksTo accurately measure 432 uL of water, what type of measuring device should you use? serological pipette micropipette transfer pipette graduated cylinder