The agar turns pink because the enzyme produces which causes a pH change to Ammonia, alkaline OA. Putrescine, acidic O B. Putrescine, alkaline OC. Ammonia, acidic
Q: WATER PURIFICATION AT THE WATER SUPPLY STATION USES THE CHEMICAL METHOD 1. irradiation of water 2.…
A: Water purification is a process of removing pollutants, microbes and other impurities from water. It…
Q: Which concentration of alcohol is the most effective germicide?a) 100% b) 75% c)…
A: The agent used to kill microorganisms or germs is called germicide. Germs can be microscopic…
Q: Give the importance of heating laboratory technique (e.g heating in a beaker)
A: Muffle furnaces, hot air ovens, bunsen burners, hot plates, heating mantles, hot oil baths, and…
Q: In sterilization, which among the supplies, instruments, glassware, etc. under the list of materials…
A: Hot air oven= powder, oil, liquid paraffin, glass wares, metal sharps Autoclave= media, reagents,…
Q: You use tubes to test aerotolerance of bacteria. From your samples you have 3 results: A. Bacteria…
A: The bacteria can grow only in the favourable conditions that is when there is optimum amount of pH,…
Q: Choose two from the following culture preservations that are best to use when only an ordinary…
A: Many laboratories and biological companies maintain large culture collection centres. These are…
Q: Microbial growth is measured by what parameter?(a) Increased cell size(b) Increased size of cellular…
A: The term microbial growth can be defined as the growth of the population or an increment in the…
Q: ... E Topic: laboratory Instrument Which of the following are TRUE regarding Which of the following…
A: INTRODUCTION The answers on the topic laboratory instruments are given below.
Q: Which bacteria are inhibited from growing on eosin methylene blue (EMB) and agar? a)halophilic…
A: EOSIN METHYLENE BLUE - eosin methylene blue is a selective strain for gram - negative bacteria . It…
Q: Choose the combination of answers that most accurately completes the statement.Detergents are a.…
A: Answer: Introduction: A detergent means a surfactant or a combination of surfactants that used for…
Q: Choose the combination of answers that most accurately completes the statement. The most versatile…
A: Sterilization can be defined as the process in which there is the removal or killing of the…
Q: Choose the combination of answers that most accurately completes the statement.The most versatile…
A: Sterilization refers to the process of removing, killing, or deactivating all microorganisms such as…
Q: When culturing microorganisms, you must ensure you work to prevent unwanted contamination. In doing…
A: Given: When culturing microorganisms, you must ensure you work to prevent unwanted contamination.…
Q: A cell is 25 μm wide when viewed at 1,000× magnification. Thismeasurement can also be written…
A: 1,000× magnification means that to the naked eye, the image would appear 1000 times larger than it…
Q: A chemical solution in the form of a tincture is more effective at destroying microorganisms or…
A: The tincture is an antiseptic ,which is made by the aqueous solution or alcoholic solution of…
Q: MSA/mannitol salt agar plate is selective because: O it allows only gram positive bacteria to grow O…
A: Mannitol salt agar(MSA) It is a selective medium used for the isolation, enumeration and…
Q: Explain how antimicrobial agents A through D in the fol-lowing diagram compare in effectiveness…
A: Microorganisms are organisms that cannot be viewed by unaided eyes and require a microscope for…
Q: Method of sterilization used. 2. What is the Bacterial culture and flavor used if there is any. 3.…
A: AMC (Alaska Milk Corporation) is a Philippine-based milk product manufacturer. The Alaska brand is…
Q: A classmate approaches you and says they performed the nitrate test. The classmate tells you after…
A: Nitrate reduction test detects whether a bacterium can utilize nitrate as an electron acceptor. It…
Q: Motility is best observed with a a. hanging drop preparation c. streak plate b. negative stain d.…
A: Motility is the ability of bacterial cells to migrate from one location to another. The flagella…
Q: What happens if you decrease or increase the concentration of antimicrobials used on the plates.…
A: The kirby Bauer method is the official method disc's of a single, usually high content of antibiotic…
Q: Which of the following is an example of disinfection? a. Washing the resident's hands with soap and…
A: There are two processes to clean the surfaces- sterilization and disinfection. The sterilization…
Q: Agar is superior to gelatin as a solidifying agent because agar a. does not melt at room temperature…
A: Agar is used as a medium for culturing in laboratories.
Q: The blood sprayed on the surface of liquid nitrogen is .A appealing method .B Thin wall method .c…
A: Cryosurgery is a type of surgery where there is rapid freezing of tissues or freezing of tissues by…
Q: Use the measurement tool to measure the zone of inhibition for each antibiotic sample in millimeters…
A: Sample A: 32.48mm , 32.5mm, 32.5mm , Average : 32.5 mm Sample B:. 24.6mm , 24.7mm , 24.7mm…
Q: Which of the following medium is considered an enriched medium? a. LB b. T-soy c. Nutrient d.…
A: A growth or culture medium is solid, liquid or semi solid in nature that is used to support the…
Q: Which of the following is not an inhibitor? a. CO b. Magnesium ion c. sulfa drugs d. cyanide e.…
A: Introduction: Inhibitors are compounds that reduce the rate of chemical reactions. It can also act…
Q: Using saline tubes containing 9 ml of saline (for dilutions), draw a diagram that would yield…
A: All the bacteria in a colony are identical as they arise from a single bacterium. Thus, a colony is…
Q: C MSA (Mannitol Salt Agar) Match the description to the correct Bacterium A= growth, agar is yellow…
A: Microbiology is the branch of science that deals with the study of microorganisms that are too small…
Q: While Aisha is home for the weekend, she gets a chance to visit the Health Center and see their…
A: Hello. Since your question has multiple parts, we will solve first question for you. If you want…
Q: about how cultures are handled in a clinical laboratory
A: Microbial cultures are wont to confirm the sort of organism, its abundance within the sample being…
Q: Which of the following medium would be most appropriate for the bacterial cultures from stomach? a.…
A: Microorganism culture out of their natural environment in pure form in the laboratory has been…
Q: :In bacterial culture media, agar is used as An additional nutrient .a Buffer .b A solidifying agent…
A: Agar is used in laboratory to help, feed and grow microorganisms. It is used in laboratory for…
Q: suffering severely due to alkaloid production a
A: Plants have an important source of life-saving medications where it is used in two ways such as…
Q: Peripheral membrane proteins A. can be extracted by chelating agents. B. completely span the…
A: Membrane proteins are group of proteins which is attached to the membrane of the cell or cell…
Q: Agar is added to media.
A: Agar is obtained from algae. It is composed of agarose (polysaccharide) and agaropectin. It is a…
Q: What type of medium is best used to maintain a preserve specimen before clinical analysis? A.…
A: A growth or culture medium is solid, liquid or semi solid in nature that is used to support the…
Q: Which of the following are true regarding UV disinfection? Mark all that apply. Water must be clear,…
A: Electromagnetic spectrum is the large range of light rays containing x rays, gamma rays, visible…
Q: Draw two tubes showing how you have inoculated microorganisms in urease and in nutrient agar
A: Inoculation is the transfer of the bacteria on the nutrient medium to show its growth. The tools…
Q: MacConkey (MAC) Agar is used to isolate gram-negative enteric bacteria. Peptone provides nutrients…
A: MacConkey (MAC) Agar MacConkey (MAC) Agar is both the selective and differential media. It is…
Q: How do you observe growth in liquid microbiological media? a) the medium is cloudy or turbid b)…
A: Nutrients are required to grow microorganisms invitro i.e outside the body is called culture medium…
Q: MSA is a selective medium and contains a higher salt concentration, a pH indicator and Mannitol…
A: Mannitol Salt Agar (MSA) is used as a selective and differential medium for the isolation and…
Q: 1&3/4 tbs po BID x 7 days #QS How many milliliters should the pharmacy dispense? this is the whole…
A: Drug Medication or medicine that causes functional modifications when consumed. Factors affecting…
Q: Glucose is added to the tissue culture media as a/ana) Carbon sourceb) Growth regulatorc)…
A: Culture medium or growth medium is a fluid or gel intended to help the growth of microorganisms.…
Q: Make a chart of all the organisms (Columns) with results a. Blood Agar Plate b. PEA Agar Plate…
A: As another way of identifying the effects of temperature on the growth of different organisms,…
Q: actors that affects the efficiency of the disinfectant
A: Disinfection is a kind of process of elimination of pathogens or microorganisms and decreasing them…
Q: a) explain in your own words how to do a nitrate reduction test to identify unknown bacteria
A: Biochemical test such as nitrate reduction test and phenol red test are used in the identification…
Q: Superoxide ion is toxic to strict anaerobes because they lacka. catalase b. peroxidase c. dismutase…
A: A superoxide basically is a compound that do contain the superoxide ion, having the chemical…
The agar turns pink because the enzyme produces blank which causes a ph change to blank?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- When acids are added to a solution, the pH should ___________ . a. decrease b. increase c. stay the same d. cannot tell without testing11. ● Possible methods for the quantitative determination of sodium bicarbonate for injection are: A) Acidimetry B) Alkalimetry C) Complexometry D) Iodometry E) Refractometry ● Calcium chloride is available in dosage forms: A) Powder for preparation of injections B) Solution for injection 10% in ampoules C) Tablets of 0.3 g D) Solution for injection 25% in ampoules E) Dry dosed powderSeparation of Amino Acids by Thin Layer Chromatography Lab Questions 1. Describe in detail Thin layer chromatographic experiment. Example: the theory behind it, how youwould prepare the materials to spot on the plate with different mobile amino acids and unknown andhow TLC Plate is developed and the reasoning behind which solvent/ solvent mixture should be used,along how to correctly identify of the unknown. 2. Calculate the Rf value if a solute travelled 5 cm from the base spot and the solvent front is 10 cmfrom the origin? 3. In a TLC experiment using a 70:30 mixture of Petroleum ether and ethyl acetate, a student noted thedevelopment of spots in the origin, what can you suggest about this observation?
- 1. Discuss the three (3) possible ways by which microorganisms may utilize inorganic compounds. Answer this comprehensively and discuss your answer thoroughly.1. Tools that do not need to be brought when sampling is…a. thermometerb. Hygrometerc. PH meterd. DO meter 2. In the deposition method, one of the conditions that must be met is…a. The precipitate has a high solubility or solubility productb. The precipitate formed must be quite difficult to dissolvec. The precipitate formed does not have to be quite pured. Free precipitate form2nd Question: For the above conditions, what is the corresponding dosage of chlorine andmonochloramine to achieve the desired degree of disinfection. same effluent concentration (2 mg/L) for both free chlorine and monochloramine
- Provide the conditions (e.g., intrinsic properties, storage conditions, etc.) that will make the recovery of the following microorganisms in commercially sterile foods acceptable: a) Obligate thermophilic sporeforming bacteria b) Acid-tolerant microorganisms c) Mesophilic or thermophilic sporeformersin food microbiology, how do you compute for concentration (M) and absorbance (A) of peroxidase activity on hydrogen peroxide at different pH values? (wavelength used = 415nm). can you please explain the calculations thank you if given: Temperature = 75 C Molar absorptivity coefficient = 10.5 Path length (cm) = 2 I = transmitted light = 0.45Based on this video https://www.youtube.com/watch?v=rKng5-ij6kQ Provide a schematic diagram for the Iodine test methodologies in determining the presence of carbohydrates. Also, give the basic principle for the test.
- 1. Calamine Lotion is classified as a suspension. What is a suspension? A. It is a disperse system in which solid, vehicle-insoluble particles (internal phase) are uniformlysuspended by mechanical agitation and formulation design throughout the liquid vehicle(external phase).B. It is a clear, flavored, sweetened, hydroalcoholic liquid oral preparation that usually containeither potent or unpleasant tasting drugsC. It is a concentrated aqueous solution containing one or more sugar components, chiefly sucrose,or sugar substituteD. It is a viscous oral liquid containing one or more medicament dissolved in a vehicle that usuallycontains high proportion of sucrose or other sugars.Which of the following is FALSE? Question 3 options: A Some bacteria reduce nitrate to nitrite B Some bacteria reduce nitrite to ammonia and/ or nitrogen gas C Sukfanilic acid and alpha- naphthylamine are used to detect if nitrites are present D A clear result after adding reagent A and B is negative for nitrate reduction E A clear result after adding zinc is a positive result for nitrate reduction1. The adsorption solution used in SO2 analysis is…a. Tetrachloromercurate(V)b. Tetrachloromercurate(I)c. Tetrachloromercurate(III)d. Tetrachloromercurate(II) 2. Storage of samples under special conditions is carried out with the aim of…a. Samples that do not enter airb. Avoid repeated samplingc. So that it doesn't rotd. Avoid chemical reactions