Explain how microbial agents A through D in the following diagram compare in effectiveness against Gram positive and Gram negative bacteria. The Negative control was soaked in sterile water. Control Control
Q: What type of medium is used to maintain and preserve specimens before clinical analysis? a.…
A: Microorganisms are small, unicellular, and microscopic organisms. Any organism capable of causing…
Q: 2. Diagram (draw) how biofilms forms on the surface of an indwelling device. Explain how biofilms…
A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want…
Q: bacterium is grown in an environment with tryptophan added to the medium. Describe how the bacteria…
A: Tryptopham is an amino acid and is a necessary ingredient to synthesise its protein. There are…
Q: Microorganism A was exposed to different constant temperatures to get the specific D- values.…
A: The Z-VALUE is the boom or decrease in temperature required to lessen or increase the decimal…
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: 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: Based on your observations of microorganisms in their living state, which between the wet mount…
A: the hanging drop method is better because it allow for longer time visualisation .
Q: Describe the term resistance and biofilm related to microbiology.
A: The ecosystem is composed of species such as plants, animals, and microbes. Microorganisms, which…
Q: A culture medium on which only Gram-positive organisms grow is called a(n): Question 9 options:…
A: Culture media is referred to as a media composed of gel or liquid to grow microorganisms. Different…
Q: In the laboratory, autoclaving is required to prepare media for the growth of What type of method of…
A: The most effective method by which we sterilize the laboratory instruments is known as autoclaving.
Q: Which of the following control achieves destruction of all forms of life? O a. Disinfection O b.…
A: Life exists in several forms ranging from the unicellular prokaryotes like the single celled…
Q: Explain why surfactant chemicals are more effective against gramnegativebacteria than against…
A: Microorganisms are small organism that cannot be seen by naked eyes. They include bacteria, fungi,…
Q: The most common microbiological contaminant of air is:(a) Spores from bacteria (d) Gram-positive…
A: The unicellular minute organisms which are not visible from the naked eye are known as microbes.…
Q: This diagram shows the filter paper method used to evaluate the inhibitory effect of chemical…
A: Factors that affect the size of the zone of inhibition- effectiveness of the inhibitory agent…
Q: The following data were obtained by incubating gram-positive bacteria in nutrient medium +…
A: Gram-positive bacteria are bacteria that test positive in the Gram stain test, which has…
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: Explain the purpose and phase where cells lose flagella and motility in biofilm formation, and why…
A: There are several steps associated with the biofilm formation. The first step includes adherence of…
Q: Growth of microbes in a solid media is identified by the formation of? a) Pellicle at the top of…
A: A culture medium or growth medium is may be liquid, solid, or semi-solid designed to promote growth…
Q: A fastidious organism must be grown on what type of medium?a. general-purpose mediumb. differential…
A: Bacteria require appropriate environmental conditions for their growth. Solid or a liquid…
Q: Compare and contrast moist and dry heat methods of microbe control and give 2 examples of each.
A: The growth of microbes in an inanimate object can lead to the contamination of the particular…
Q: not test water samples directly for Salmonella typhosa or other pathogens
A: There are serious limitations to the use of direct isolation of specific pathogenic bacteria for…
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: What would you expect to see if you cultured Gram-positive, lactose-fermenting bacteria on MacConkey…
A: Given: What would happen if you culture gram positive, lactose fermenting bacteria in MacConkey…
Q: What incubation temperature is preferred for the growth of most medically important bacteria?…
A: Various bacteria have different incubation temperatures-hyperthermophile (60 degrees C and upwards)…
Q: Think of three situations in which the same microbe would beconsidered a serious contaminant in one…
A: Microbe or microorganism is a microscopic organism. Microorganisms can be fungi, bacteria, protists,…
Q: Media that prohibits the growth of some types of bacteria, but has no reaction to bacterial growth…
A: Introduction Microbiological media, often known as bacterial culture media, is a bacterial growth…
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: differential plate enrichment plate selective plate streak plate pour plate
A: Differential plate: Differential media used to distinguish between two related microbes. It used to…
Q: Define the term “colony” as it relates to bacterial growth on solid media.
A: The pure culture techniques are carried out in the microbial laboratories, where the microbes of…
Q: After an antimicrobial drugs test, the following results were obtained from a disk-diffusion test…
A: The antibiotic disc diffusion test is usually performed on an agar plate. The agar plate contains a…
Q: beneficial activities of microorganisms.
A: Microorganisms. Microorganisms or microbe are unicellular or multicellular microscopic prokaryotes…
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: 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…
Q: Which of the following control agents help to be used to achieve sterility? - Virucide - Sporocide…
A: Sterilization can be achieved through various means, including heat, chemicals, irradiation, high…
Q: Agar is added to media.
A: Agar is obtained from algae. It is composed of agarose (polysaccharide) and agaropectin. It is a…
Q: Match the descriptions below to the correct letter labeled Bacteria This bacterium cannot grow in…
A: MSA or Mannitol salt agar is used for the selective and differential growth of microorganisms in…
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: “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: 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: Complete the table to contrast EMB Agar and MSA.
A: Media play a pivotal role in growth of Microorganisms.Media provide Nutrients to the organisms that…
Q: Define the meaning of Surface sterilization of explants Surface sterilization of explants
A: Plant tissue culture is very helpful technique in which plants are grown in in vitro condition and…
Q: explain how bacteria can develop resistance to chemical disinfectants
A: Biocide resistance to biocides is bought about by Intrinsic resistance or (intrinsic…
Q: You are given a culture medium on which only Gram negative bacteria will grow. Organisms that are…
A: The medium in which only gram negative bacteria will grow prevents gram positive bacteria to grow in…
Q: Explain what features of endospores make them so resistant to microbial control, and how sterilizing…
A: Controlling microbial growth entails inhibiting or preventing the growth of microorganisms. This…
Q: After the mordant has been added, Gram-positive organisms are stained __________ and Gram-negative…
A: Gram staining is a staining technique used to differentiate two large groups of bacteria based on…
Q: Choose the combination of answers that most accurately completes the statement.The MIC is the…
A: Minimum inhibitory concentration test is a quantitative method used to determine which class of…
Q: Microorganism A was exposed to different constant temperatures to get the specific D- values.…
A: The z-value is a measure of the change of the D-value with varying temperature, and is a simplified…
Step by step
Solved in 2 steps with 1 images
- Identify two factors that make biofilms more tolerant to antimicrobials and make sure to include their mode of action.what is plaque essay? what is the purpose of this lab? why this lab is perform? (bacteriophage) what techniques is used and how can we derive information(data)? methologies, theory, mechanism for reactions that lead to observable results. required information on microbial metabolism. why is the microbe doing this?Explain how antimicrobial agents A through D in the fol-lowing diagram compare in effectiveness against Gram-positiveand Gram-negative bacteria. The control filter paper was soakedin sterile water.
- Briefly describe the main scientific principle(s) underlying the following techniques used in the Combating Disease practical (you may use diagrams if you wish): ammonium sulphate precipitation Dialysis ImmunoelectrophoresisCompare 2 applications of autoclaving and pasteurization with regard to antimicrobial control . Need answer in short and Asap !On Aseptic Techniques: What is/are the instances/situations that each method of inoculation is to be used?
- How is the information from a Kirby-Bauer disk diffusion test used for the recommendation of the clinical use of an antimicrobial drug? Who should be responsible for discovering and developing new antibiotics? Support your answer with reasoning.Suggest a possible mechanism for how a microbe that becomes resistant to an antimicrobial chemical can transfer that to another microorganism, and also transfer resistance to antibiotics in the process.Identify two factors( in detail)that make biofilms more tolerant to antimicrobials including their mode of action.
- Explain the mechanism of action of several of the physical and chemical agents employed to control microbial growth.Define the following termonologies in brief : Focal Adhesion Biofilm Calcification and examples in implanted biomaterials Non-fouling surface Aptamerlist 5 different antimicrobial agents, describe their mode of action and whether the are an HLD, ILD or LLD.