Q: As the temperature of pasteurization increases, the time of treatment decreases. True False
A: Pasteurization is a technique by which some of the liquid foods such as milk, fruit juice etc is…
Q: Why do you have to boil the agar solution before dispensing it into tubes?
A: Agar is the medium which can used to grow the micro organisms in petri plates. The selected…
Q: Why does motility media contain a lower amount of agar than ordinary agar?
A: Agar is a phyco-colloid polymer of galactose monomers obtained from red algae (Gelidium and…
Q: What is agar and why is it necessary for growing bacteria on plates?
A: Agar is a mixture of two polysaccharides- agarose and agaropectin. It is derived from red-purple…
Q: What is the correct shape of the unknown bacterium growing on your MacConkey agar?
A: Macconkey Agar This agar includes bile salts, which are found in the gut. Bile salts help in…
Q: Is the Tryptoc Soy Agar (TSA) a complex defined medium? Explaining based on its composition? Is TSA…
A: Trypticase soy agar (TSA) and Trypticase soy broth is a growth media for the culturing of bacteria.
Q: Could you explain the difference ( and possibly show the difference) between a growth on Agar slants…
A: Growth of cultures in slants and broth can provide us with useful information regarding their…
Q: Which of the following would you most expect to find in a fecal contaminated water sample?…
A: Water pollution is described as the fouling of bodies of water. Water pollution occurs when rivers,…
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: Can you tell IF the pasteurization process is working in this milk producing plant? How can you…
A: Pasteurization is a process in which milk or milk product is heated to a certain temperature for a…
Q: A broth culture is initially inoculated with a single bacterial cell. For the first hour the…
A: * Given that The bacteria has generation time of 30 minutes. So it takes about thirty minutes to…
Q: Which one of the following statements about liquid media is false Select one: a-is prepared without…
A: Liquid media are growth medium used in the microbiological experiments. They can provide a medium on…
Q: Where should a label be written on an agar plate?
A: The aseptic technique is applied in a laboratory setup to reduce the risk of contamination. It…
Q: What is bacterial agar?
A: MICROBIAL GROWTH MEDIA- It is the culture media that serves as a nutrient media for the growth of a…
Q: Why should culture media after inoculation be incubated at an optimal temperature immediately?
A: Culture media, also called as growth media, are particular combinations of nutrients and other…
Q: Why do you think the continuous culture has higher chances of contamination than batch and fed-batch…
A: Continuous culture may be a set of techniques wont to reproducibly cultivate microorganisms at…
Q: You were given a mixed nutrient agar broth culture of bacteria 1a. How will you determine the…
A: A mixed bacterial culture consists of more than one bacterial cell types growing together. On the…
Q: What is the correct shape of the unknown bacterium growing on your mannitol salt agar
A: Mannitol salt agar also known as MSA is commonly used selective agar in microbiology. This material…
Q: why is it important that a small amount of inoculum be used in preparation of an agar slant
A: Agar is a jellylike substance derived from the purified cell walls of red algae. It is added to…
Q: Since it is very rare for any direct patient sample to be axenic, what could you do to get to an…
A: A "microbe" is a living entity that is so tiny that it cannot be seen with the naked eye.…
Q: Would you use an inoculating loop to transfer bacteria to an agar deep tube?
A: Agar deep tube is a glass tube which is filled with solid medium. The medium is solid due to…
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: Explain why it is important to use only a small amount of bacteria when preparing a smear
A:
Q: If you prepare culture media plates 2 days ahead of the laboratory schedule, can you still use the…
A: Preparation of culture media and inoculation are two of the very sensitive steps in any…
Q: What is the most commonly used fixative in stool samples and why? Why is staining of stool samples…
A: What is the most commonly used fixative in stool samples and why? Why is staining of stool samples…
Q: What makes agar good support for microbial growth?
A: Microbial culture is a method of multiplying microbial organisms by letting them reproduce in…
Q: WHAT IS THE TYPE OF Growth patterns on Agar Slant and Broth Medium
A: Growth and morphogenesis of plant is determined by the composition of culture media. There are few…
Q: What is the name of this media? What type of media is it? What does the yellow color indicate? What…
A: Selective media generally selects for the growth of a desired organism, stopping the growth of or…
Q: Do Gram-positive bacteria grow on PEA agar? If not, what prevents their growth?
A: Bacteria are common, mostly free-living organisms that are often made up of only one biological…
Q: To prepare nutrient agar medium, you have to pour approximately. mL of medium into the Petri plat a.…
A: A patri dish is a normal in which is used for the growth of bacteria and other microorganisms. it is…
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: Why does dry heat require higher temperatures for longer time periods to sterilize than moist heat
A: Sterilization may be defined as the process which help in the complete removal of all…
Q: Use of streak plate technique to isolate and purify psychrotrophic spoilage-causing bacteria
A: There are billions of bacteria in the human body that make up the natural flora to resist the…
Q: Why is 15 minutes generally used for sterilization? Why is agar added to medium?
A: Sterilization is the process in which all life forms like microbes (fungi, bacteria, viruses,…
Q: ow can one be sure that the culture media are sterile or free from contamination
A: Sterility, often known as sterility, is the state of being free of all contaminants and…
Q: How is it that mold appeared on my samples? (in other words where did it come from or what is the…
A: Mold is a fungus that grows in the form of hyphae which are multicellular filaments. The spores of…
Q: Based on the growth you saw on your Lee’s Agar plate, what conclusions can you make about the…
A: Lee Agar is used to study the bacteria that can grow on yogurt. It is primarily used to count the…
Q: What are the culture media that can be used for cultivating non-specific and specific…
A: A microbiological culture medium is a substance that promotes the growth, support, and survival of…
Q: what is your initial assumption of the organism causing this disease
A: Bacteria are the prokaryotic microorganism and based on the structural cell walls, Gram stain…
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: How many different types of colonies can you find on the blood agar plate? describe each. (As shown…
A: Blood agar is general medium that is provided with the nutrients and can be use as a general growth…
Q: How is the CTSA (coconut tryptic soy agar plate) growth medium designed to meet the nutritional need…
A: TSA is a general-purpose plating medium that can be used to isolate, cultivate, and maintain a wide…
Q: Is the mannitol salt agar (MSA) a complex or defined medium? Explain based on Composition. What kind…
A: The selective ingredients of MSA the bile salts and the dye, crystal violet which inhibit the growth…
Q: What is the correct arrangement of the unknown bacterium growing on your mannitol salt agar? Also,…
A: Mannitol Salt Agar (MSA) is a selective as well as differential medium, used for selective isolation…
Q: Why is it easier for microorganisms to grown on plastic surface rather than wood?
A: Answer- Wood does have natural antibacterial properties. The organism of bacterium like- Ideonell…
Q: You are reading culture plates today and identifying pathogens that grow from patient samples. Which…
A: The culture plates for growing microbes hold importance in understanding and examining the…
Q: explain why you would expect to see similarities in the types of colonies on the fomite plates and…
A: Organisms that are too small to be seen by the naked eye are microorganisms. These organisms can be…
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: When testing the efficacy of an antibiotic against bacteria on an agar plate, it is important to…
A: The disk diffusion method, also known as the Kirby-Bauer test, is used to test the effectiveness of…
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- Why do you have to boil the agar solution before dispensing it into tubes?Abigail did not dry the top of her agar plate and stored it top up. Now she wants to count colonies but there is a smear over the entire plate. She was working with E. coli. Why does she have a smear?Where should a label be written on an agar plate?
- Why might viable cell cultures be of more use in microbialtaxonomy than preserved specimens?why is it important that a small amount of inoculum be used in preparation of an agar slant?In the preparation of a bacterial smear, why is there a need to fix the bacteria to the slide? Aside from passing the slide over a flame, what are the other ways of fixing the bacteria to the slide?
- What type of agar is MacConkey agar?Technique used to inoculate plate media using inoculating loop. Technique used to inoculate agar deep using inoculating needle. Pattern used to inoculate agar slant to get luxuriant culture. This pattern increases the surface area of agar that can be inoculated. Can you answer all the questions? Thankyou!In a bacterial culture on an agar plate, what is a zone of inhibition? An area where the growth of bacteria is increased compared to the rest of the agar plate An area where the growth of bacteria is prevented or reduced compared to the rest of the agar plate An area where the growth of bacteria is not affected compared to the rest of the agar plate An area where the the agar becomes contaminated with mold
- Since it is very rare for any direct patient sample to be axenic, what could you do to get to an axenic culture starting with a contaminated or mixed-culture plate?How to prepare an agar plate for bacteria? How to include the antibiotics into agar plates? How long should you wait for bacterial colonies to grow on agar plates? What is the appropriate temperature?.Which of these microbial structures is the most difficult to kill when attempting to sterilize instruments? bacterial spores Mycobacterium pneumoniae protozoal cysts fungal spores