Q: What are the primary limitations imposed by using Hanging-drop method (or Wet mount) to observe…
A: Hanging drop preparation is a type of wet mount in which a drop of organism-containing media is…
Q: The agar turns pink because the enzyme produces which causes a pH change to Ammonia, alkaline OA.…
A: Urease test is performed to check the organism's ability to produce an enzyme known as exoenzyme.…
Q: What is the purpose of flaming an inoculating loop? How will you know when you have flamed the loop…
A: Hi, since you have posted multiple questions, we will be providing you with answers for the first…
Q: A culture of E. coli has a concentration of 5 x 108 cells/mL. How many times do you have to dilute…
A: Given: 1. Number of colonies: 2502. No. of bacteria in culture: 5 X 108 3. Volume plated: 0.1 ml 4.…
Q: In spread plate method, colonies form within the agar and agar surface. In pour plate method,…
A: Introduction Agar media is essential for the study of microorganisms and molecular biology, It is a…
Q: How can one distinguish E. coli from P.aeruginosa on nutrient agar? blood agar? EMB agar? What is…
A: Psuedomonas aeroginosa iscan aerobic organism that is motile, gram negative , rod shaped bacteria…
Q: What makes a culture media DIFFERENTIAL? Explain and provide examples of differential type of…
A: Answer: Culture media is the growth medium or culture medium which is solid, liquid, or semisolid in…
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: The use of abomasum as a source of rennet is not practical. Explain why
A: Rennet is an enzyme or a substance that is produced as a coagulant and helps in the production of…
Q: 1-________terms describe the form of bacterial colonies on nutrient agar plate. 2- ______ is a terms…
A: INTRODUCTION A growth medium, also known as a culture media, is a liquid or gel that helps bacteria,…
Q: What are biofertilisers? A farmer is advised to add a culture of bacterium in the soil before sowing…
A: A fertilizer is a substance which is applied to soil or plant to increase the soil fertility or…
Q: A bioreactor which is used for the production of growth factor A is operated as fed- batch culture.…
A: A Bioreactor is a device or a process system which supports and habitats the biologically active…
Q: Determine the amount of dehydrated medium needed to prepare 50 nutrient agar plates. Include amount…
A: Nutrient Agar is a general purpose, nutrient medium used for the cultivation of microbes supporting…
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: While working with Mannitol Salt Agar you notice the growth of staphylococci however other…
A: Mannitol Salt Agar (MSA) is a media which has high concentration of salt solution. There are found…
Q: If lysozyme is added to a microbial culture. Predict what will be observed if the culture is…
A: Microorganisms are small organism that cannot be seen by naked eyes. They include bacteria, fungi,…
Q: Why is agar production more costly than carrageenan production
A: As there is difference is between other production and carrageenan production basically the key…
Q: How is the CTSA (Coconut tryptic soy agar) growth medium designed to meet the nutritional need of…
A: Coconut trypic soy agar media are general-purpose, non-selective media that provide enough nutrients…
Q: attern used to inoculate agar slant to get luxuriant culture. This pattern increases the surface…
A: Slant culture : A culture made on the slanting surface of a solidified medium in a test tube that…
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: 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: Remove the agar plate from its lid with the left hand. While holding the plate, inoculate the agar…
A: Introduction -- Microbes are around and every where in environment. Sterile agar plates which…
Q: What is the purpose of the quadrant streak plate method?
A:
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: 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: In a nutrient broth, where do microorganisms acquire their requirements for mineral elements like…
A: Microorganisms are grown in laboratories using culture media. Culture media contains all the…
Q: Phenylethyl alcohol and why would it be useful in agar
A: Acoording to this question we have to decribe phenyl alcohol and the phenylethyl alcohol be useful…
Q: what are these bacteria growing on BA and Maconkey agar
A: Blood agar or BA is an enriched culture medium having multiple nutrients. Blood agar is generally…
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: The difference in the colony appearance of bacteria cells growing on mannitol salt agar is detected…
A: Mannitol salt agar is a selective culture media that is used for the isolation of the pathogenic…
Q: Which of the following media selects for gram negative bacteria by inhibiting the growth of gram…
A: Selective media:- it usually allow the growth of a particular microbe and inhibit the growth of…
Q: What culture medium can be used for the acclimatization of Bacillus and Pseudimonas to degrade…
A: Answer: CULTURE MEDIA = These are the selective and differential media which are used to grow…
Q: Mueller-Hinton agar needs to be made to specific standards in order to yield reliable, reproducible…
A:
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: How should agar plates be incubated? Why?
A: Incubating the plates to stimulate the growth of microbes is a crucial step in any microbiology…
Q: What is the main difference between plates before and after centrifugation? What may be the purpose…
A: Answer: CENTRIFUGATION = It is the process involving mechanical force that is centrifugal force,…
Q: Shown below is the growth of E. coli in nutrient agar plates after exposure to different doses of UV…
A: Answer :- The given data infer the effect of increasing UV exposure time on E. coli. With an…
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: MacConkey (MAC) Agar is used to isolate gram-negative enteric bacteria. Peptone provides nutrients…
A: Introduction Alfred Theodore MacConkey invented MacConkey agar (MAC) in the twentieth century, which…
Q: ar contains salt to prevent the growth of most microbes and mannitol plus a pH indicator to detect…
A: In order to produce and culture different types of microbial species, a culture media is required.…
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: One of the following is INCORRECT about Spread plate a-Allow aerobic bacteria to grow b-The sample…
A: The spread plate method is used to count the viable cells.
Q: Which of the following types of media would be appropriate to use in order to culture a fastidious…
A: Answer:- From all the four above-mentioned medias yeast extract media and nutrient media are…
Q: Certain endospore-forming bacteria are a particular concern of the canned food industry. Name one of…
A: Some bacteria can survive adverse environmental conditions such as extreme temperature differences…
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: main goal of motility agar
A: MICROBIAL GROWTH MEDIA- It is the culture media that serves as a nutrient media for the growth of a…
Q: What is a starter culture and what is its purpose? What are the characteristics of a good starter…
A: STARTER CULTURE:- Starter culture are those microorganisms that are used in the production of…
why is it important that a small amount of inoculum be used in preparation of an agar slant?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- 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 moldWhat type of agar is MacConkey agar?Are the large numbers of microorganisms found in the mouth cause for concern? Explain. How can you determine whether a culture or subculture is pure? What kinds of clinical speciments may yield a mixed flora in bacterial cultures? Why was a blood agar, rather than a nutrient agar, plate used for the culture from your mouth?
- A broth culture is initially inoculated with a single bacterial cell. For the first hour the bacteria has a generation time of 30 minutes, for the second hour the generation time has been reduced to 15 minutes, and for the third hour the generation time has been reduced to 10 minutes. At the end of the third hour how many bacteria are present in the broth culture?Why does uninoculated agar plates still has visible growth of microorganisms? Where do you think the microorganisms came from?Why does saliva not serve as a good microbialgrowth medium?
- How can one distinguish E. coli from P.aeruginosa on nutrient agar? blood agar? EMB agar? What is the major difference between Thayer-Martin and chocolate agar? When would you use Thayer-Martin rather than chocolate agar?why would selecting a colony from a blood agar plate to test with enterotube be badDescribe characteristics of Proteus Vulgaris in the Agar: (How does colonies look like (color) and explain does it grow on that agar. Blood Agar (Aerobic) MacConkey EMB PEA Mannitol Salt Agar Chocolate Agar Nutrient Agar