Q: What is a mixed culture? A contaminated culture?
A: A microbiological culture, or microbial culture, is a technique for increasing microbial creatures…
Q: Why is the level of contamination measured as number of colonies rather than size of colonies?
A: Microbiological contamination refers to the presence of unwanted or accidental introduction of…
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: Why does a streaking method used to inoculate plates result in isolated colonies?
A: Streaking method is used to obtain pure colonies of microbes(bacteria) from a proper single species…
Q: Name two ways that pure, mixed, and contaminated cultures aresimilar and two ways that they differ…
A: Microorganisms are isolated and cultured for various reasons. Culture is the observable growth that…
Q: What is the difference between culture-based technique and culture-independent techniques based on…
A: A microbiological culture, also known as a microbial culture, is a way of multiplying microbial…
Q: Are the large numbers of microorganisms found in the mouth cause for concern? Explain.
A: We are authorized to answer one question at a time.Since you have not mentioned which one,I am…
Q: Why is the culture medium referred to as a highly enriched laboratory soil?
A: Culture medium is referred to as highly enriched laboratory soli because it provides all the…
Q: What are the disadvantages of doing a total microbial count by examining wet mounts under the…
A: Ans- Wet mounts have the following drawbacks: The benefit of being able to observe movement can also…
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: Why was a blood agar, rather than a nutrient agar, plate used for the culture from your mouth?
A: Cultured bacteria are any bacteria that grow in the lab by the microbiologist using the required or…
Q: Does the image above represent a pure culture? Yes O No
A: Answer- No
Q: What are the 4 types of culture?
A: Biological cultures include common laboratory means, which are involved in studying living organisms…
Q: How can the enrichment culture technique be used medically?
A: Bacteria require appropriate environmental conditions for its growth. Solid or a liquid preparation…
Q: Why after a certain period the growth rate of the culture decreases until growth stops?
A: Warmth, dampness, pH levels and oxygen levels are the four major physical and chemical components…
Q: What temperature is considered adequate for achieving sterilization of a compost pile?
A: temperature considered for achieving sterilization of a compost pile is 135-160 F. At a…
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 are the factors which need to be considered in the selection of culture vessel?
A: Culture vessels:- Culture vessels provide a contamination barrier to protect the cultures from the…
Q: temperature and light source affect the number and type of colonies that can be found in the…
A: Microbes such as bacteria, fungi, viruses are grown at the earth's surface. The atmosphere provides…
Q: How is the correct way of incubating culture plate media? Explain why is that so.
A: After the way of life medium is set, and streaked with the necessary microbe/stock, the cover is put…
Q: Why might viable cell cultures be of more use in microbialtaxonomy than preserved specimens?
A: Microbial taxonomy is a field of biological sciences that deals with the grouping of microorganisms…
Q: Provide three reasons why the use of aseptic technique is essential when handling microbial cultures…
A: Aseptic techniques means using practices and procedures to prevent contamination from pathogens. It…
Q: Give at least two other examples of samples that are best prepared using Smear Preparation…
A: Smear preparation technique: it is used to fix the samples onto the slides.
Q: If you had a mixed culture that contained a Gram-negative enteric bacterium and Gram-positive…
A: MSA or mannitol sale agar used in microbiology. It encourages growth of some group of bacteria…
Q: Explain why it is important to use only a small amount of bacteria when preparing a smear
A:
Q: chemically defined media b. complex culture media
A: Media is a growth medium of solid,liquid and semi solid type. Diffarent types of media are used for…
Q: What are the advantages and disadvantages of using the Wet Mount technique?
A: As per bartleby guidelines, we are suppose to answer only one question kindly post other separately.…
Q: Describe three problems associated with using the standard plate count method for determining the…
A: Typically, an accurate count of bacterial colonies is required for biological processes. Microbial…
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 is meant by the term “enrichment culture”?
A: The culture medium or growth medium is the specific medium, which contains all essential nutrients,…
Q: What does a MEGA plate tell you about your microbial culture?
A: Microbiology is the branch of biology that deals with study of organisms that are too small to be…
Q: Distinguish batch culture and continuous culture
A: Fermentation is used to convert carbohydrates into alcohol or acids. This process occurs in some…
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 things can be done during sample collection of a sick patient to help eliminate the culture of…
A: Normal flora is the organisms that are present in the body for normal functioning. The normal flora…
Q: How does the age of a culture affect the Gram stain reaction? What is an optimum culture age for a…
A: To identify the unknown bacteria this gram staining is used. This staining technique differentiate…
Q: Differentiate between defined and complex culture media
A: To differentiate: Chemically defined and complex culture media
Q: Assuming you had a bacterial culture with a concentratoion of 2x10^9 bacteria/mL, whaat volume would…
A: A microbiological culture, also known as a microbial culture, is a technique for growing…
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 microbe requires serum components to be added to the growth medium?
A: Introduction Microorganisms:- An organism that can be seen only through a microscope, They live in…
Q: Describe the difference between batch and continuous culture techniques
A: Bacteria and fungi, for example, are extremely valuable to a wide range of industries.…
Q: How to reduce or eliminate aerial contamination inside the laboratory?
A: Indoor air quality (IAQ) : To main the indoor air quality becomes an important aspect especially in…
Q: What are the primary uses of the following preparations of culture media? Agar regular slant Agar…
A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…
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…
Q: To dilute a bacterial culture, 500 μl of a 16 hour culture is mixed with fresh culture media to a…
A: Given Values: Volume of the 16 hour culture = 500 μl Final Volume of the culture media = 5 ml
Q: What is the goal of isolation streak plate technique? Why is microbial considered a pure culture?
A: Streaking : Streaking for isolation on an agar plate involves the successive dilution of organisms…
What is the difference between a mixed culture and a contaminated culture if they both contain more than one type of organism ?
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- What is the purpose of the pour plate technique? If a pure culture is used to inoculate the plate, why are some colonies bigger than others?What is a mixed culture? A contaminated culture?In the Harada-Mori culture technique, how are you going to dispose the culture tubes? Is it suitable to use refrigerated samples for this procedure Why or Why not?
- What type of media are culture medium 1 and culture medium 2? And its difference to each other?Mueller-Hinton agar needs to be made to specific standards in order to yield reliable, reproducible results. How deep is the agar on a Mueller-Hinton agar plate? a) 2 mm b) 4 mm c) 6 mm d) 8 mmWhy is it important to keep the culture at the correct incubation temperature when measuring the generation time?
- What is the purpose of adding sodium bicarbonate to a culture medium?Transparent double-sided dishes used for growing microbes are most commonly called A) Petri dishes. B) baker dishes. C) sterilization plates. D) culture medium plates.What is the difference between culture-based technique and culture-independent techniques based on the principle behind the method?