Q: Illustrate the step by step method of preparing culture media.
A: Introduction Culture medium:- It is a liquid or gel designed for specific mixtures of nutrients and…
Q: Agar is a solidifying agent used in media preparation. What makes it ideal for cultivation of…
A: Agar is a natural polysaccharide. It is mostly used in the lab and acts as a solidified agent. It…
Q: Why don't you get isolated colonies from the pour plate if the broth culture was not diluted first?
A: The pour plate method is a technique used to count the number of colony-forming bacteria found in a…
Q: List Winogradsky’s contributions to microbial culture technique.
A: Microbiological culture is a method of multiplying microorganisms by letting them reproduce in a…
Q: explain in your own words an introduction to a lab about Control of Microbial Growth - Antimicrobic…
A:
Q: Describe how the streak-plate method is used to obtain a pure culture and how the resulting culture…
A: In microbiology, culture refers to microbial growth of a certain species maintained in controlled…
Q: Write an introduction related to culture media and isolation of pure culture technique (streak plate…
A: In microbiology, there are five I’s which represent five different techniques used in the…
Q: Explain the principle involved in O.D determination of microbial populations using the…
A: A spectrophotometer is an instrument that can determine the concentration of a compound or solution…
Q: Discuss the most important thing to remember in preparing and inoculating culture media?
A: Introduction: Microbes are a source of contamination and infection. They are categorized as…
Q: What is the importance of agar plates and bacteria cultures in food microbiology?
A: There are different culturing techniques such as agar plates, broth culture, stab culture and solid…
Q: List the two main types of culture media and how each differs and the types of microbes which grow…
A: Culture media contains all the elements which the bacteria needs for growth and is not selective in…
Q: Agar is a solidifying agent used in media preparation. What is its origin?
A: Agar gel is a polysaccharide which can become liquefied at temperatures ranges from 85°C to 90°C and…
Q: How does bacteria grow on agar plates?
A: Bacteria are the most primitive organisms on Earth. They can survive in most extreme environments as…
Q: why it is useful to plot the microbial growth from a growing microbial culture?
A: The term microbial growth refers to the growth of a population of microbe, it is an increase in the…
Q: microbiology: Aseptic Culture Techniques Lab Explain why a loop or needle is flamed before it is…
A: The process of introducing a microorganism in a plate or a tube containing culture media is called…
Q: how can ultraviolet be used to control microbial growth. which specific UV can be used to control…
A: Ultraviolet (UV) - non-ionizing radiation. - penetration power is less. - It is a physical mutagen.
Q: Why have several specialized media been developed? Give an example ofone such medium.
A: Culture media is of basic importance for many microbiological tests: to get pure cultures, to grow…
Q: What type of agar would you use to grow gram positive bacteria
A: Bacteria are different from the plant as well as animals. They require specific substances in the…
Q: Write a note on different culturing, metabolic and physiological techniques used in the Microbiology…
A: Microbiolgy delays with the culturing of microbes in the media and than used for making copies and…
Q: Describe the step by step method of preparing culture media in microbiology.
A: Culture media are the media or the substrate used to grow microorganisms. There are different types…
Q: What is the principle behind sterilizing media before use and before disposal
A: Microorganisms may be beneficial or harmful. The harmful microorganism causes many infections which…
Q: give one reason why is it necessary to keep stirring the agar medium mixture in a beaker when…
A: Agar is a heteropolysaccharide, which is composed of different carbohydrate units. Agar is obtained…
Q: Why do we study how to control microbial growth? Give concrete examples wherein our understanding of…
A: Introduction :- Bacterial growth occurs when a bacterium divides into two daughter cells, a process…
Q: Enlist th five differences between crude media and defined media.
A: Microbiology uses different types of culture media for the growth, culturing, and study of different…
Q: Are TSA, MRS and MOX differential media? Why or why not?
A: In microbial biology, differential media refers to any growth media that comprises of certain…
Q: Compare and contrast the action of alcohols, halogens, and oxidizing agents in controlling…
A: Alcohol is used as disinfectant for centuries.Alcohol is extremely effective in fight against single…
Q: Describe the five phases of a microbial growth curve observed when microbes are grown in a batch…
A: Introduction: Bacteria is unicellular prokaryotic organism that can survive in any kind of…
Q: Do all the microbes are cultivable in lab? Explain different techniques to study the microbial…
A: Microorganism: These are too small organism which is impossible to see by naked eyes. They exist in…
Q: What compounds or chemicals might be added to a medium to make it selective?
A: Culture medium or growth medium is a liquid, solid, or semisolid designed to support the growth of…
Q: What other fields of science besides microbiology is the aseptic technique used?
A: Aseptic technique refers to the procedures that prevent the contamination of microorganisms. They…
Q: What is the nature of samples that should NOT be placed inside the drying-oven?
A: According to the question, we have to explain the nature of the samples that should not be placed…
Q: What type of agar would you use to grow gram negative bacteria
A: Gram-negative bacteria are the bacteria that do not consist of the crystal violet stain and they are…
Q: Distinguish the difference between a sterile media plate and a contaminated media plate.
A: streaking is a method to extract pure culture organisms from a different population of…
Q: what information about the identity and physiology of a bacterium or yeast can be learned from…
A: Micro organisms are grown in a solid medium (agar) with supplements as a primary step in order to…
Q: Explain the effect that environmental factors exert on the growth and development of an algal batch…
A: The growth and development of algae is controlled by various environmental factors. This includes,…
Q: What are the advantanges and disadvantages of using stained preparations for observing microbial…
A: Characteristics of microbes are studied using a microscope by microbiologists. Some microbes like…
Q: selective agar media for gram-positive bacteria?
A: Phenyl Ethyl Alcohol Blood Agar is a selective media for gram positive bacteria.
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: Please explain the differences between freeze drying,drum drying and air drying and which give a…
A: Freeze drying, drum drying, and air drying are dring methods to remove water content from the cell…
Q: Turbidometry is a method used for counting microbes?
A: Microbiology is the branch of biology that deals with microorganisms. Bacterial cultures and their…
Q: How is UV radiation a good type of control mechanism against microbial growth? Explain what happens…
A: UV-C is most commonly used to kill microbes. However UV of different wavelength can show different…
Q: Select an appropriate technique to identify a microbial genus, species, and strain
A: Microbes are small living things that cannot be observed with the naked eye. These live in soil,…
Q: Distinguish between the major types of sterilization filters usedin the microbiology laboratory
A: The method of sterilization of heat-sensitive fluids (liquids and gases) without exposing them to…
Q: Assume that you had plated your +PGLO culture on an LB agar plate. What result (number of colonies)…
A: +pGLO culture is a type of bacteria that has been genetically modified to produce a fluorescent…
Q: Describe the use of microscopy to identify microorganisms in patient specimens
A: A microorganism, often known as a microbe, is a minute living entity. Microbiology is the study of…
Q: Elaborate on the advantages of examining colony in an agar plate.
A: An agar plate is a Petri dish which have a development medium set with agar, utilised to culture…
Q: What is this media? What type of media is it? Which type of organism can grow on this plate?…
A: Media is... Agar This is the solids type of Media. Organism type... Streak plate technique is used…
who introduced the use of cotton plug in microbial culture tubes.
Step by step
Solved in 2 steps
- Why might viable cell cultures be of more use in microbialtaxonomy than preserved specimens?During media preparation, you observed that the agar medium did not solidify after sterilization even after incubating it for 1 hour at room temperature. What could be the reason behind this?“Salt agar” is a type of ______ medium for culturing some microbes and not others
- What are the disadvantages of doing a total microbial count by examining wet mounts under the microscope?explain why the invention of solid culture media was of great importance to the development of microbiology as a scienceExplain why it is important to use only a small amount of bacteria when preparing a smear
- what is the purpose of using oil immersion with the 100x objective lens? a)To prevent refraction of light b)To prevent scratching the slide c)To allow microbes to resuspend in the fluid d)Oil is not used with the 100x, but rather 40x e)To prevent microbes from dryingYou collected a sample from a patient with a suspected STI. After Gram staining, you observed this under the microscope. What can you conclude about this microbial agent? Also I have attached a pictureWhat other fields of science besides microbiology is the aseptic technique used?