Q: Bacillus cereus divides every 30 minutes. You inoculate a culture with 100 After 3 hours, how many…
A: Bacillus cereus is a rod-shaped, gram-positive bacteria. It is a facultative anaerobe. It is a toxin…
Q: Is the environment in a candle jar anaerobic?
A: Introduction: An environment is considered as anaerobic when no free oxygen is available but present…
Q: A colleague performs a smear prep from a colony on an agar plate. Without staining it, he looks at…
A: Answer : the error in his logic is that he didn't stained the bacteria with the gram stain. He…
Q: Assume that you are responsible for decontaminating materials in a large hospital. How would you…
A: Harmful bacteria, mold spores, spoilage bacteria, virus, and other dangerous pollutants are…
Q: The most efficient disinfectant chlorine, discuss why? ( subject: medical microbiology lab )
A: Step 1 Disinfectants are chemical agents that are applied to abiotic objects to destroy or…
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: Briefly explain this statement "Cereal dilution technique of microorganism in food" - Please answer…
A: Because food is a rich source of nutrition for microorganisms, they develop and multiply in food…
Q: What do you mean by agar? Give example.
A: Microbial culture is a method of multiplying microbes by allowing them to reproduce in a…
Q: The microscope images show two different sludges. Which sludge is preferable in a biological…
A: Bacteria, archaea species, fungi, and certain protists are among the aerobic and anaerobic microbial…
Q: Make a course description about microbiology
A: MICROBIOLOGY The name microbiology came from the Greek word mikro = small, bios = life, logos =…
Q: When culturing microorganisms, you must ensure you work to prevent unwanted contamination. In doing…
A: Given: When culturing microorganisms, you must ensure you work to prevent unwanted contamination.…
Q: Describe several ways in which coliform bacteria are known to get into well water.
A: Introduction Coliform bacteria are classified as Gram-negative, non-spore-forming Bacilli that are…
Q: Which metric unit is most appropriate for expressing the size of bacterial cells? a). nanometer b).…
A: In science standards unit of measurement is metric. Some organisms can be seen by naked eyes. Their…
Q: In Microbiology, are there technologies that can help make Bacterial Culture and Sensitivity done…
A: Conventional methods for identification of bacteria and its drug susceptibility testing depends on…
Q: how many bacteria/ml of the diluted broth would be present on average
A: 37 bacteria/ml of the diluted broth would be present on average.
Q: Describe how to make bacterial culture in different media. Explain different cultural techniques…
A: The predigested protein provides nutrition for the growth of bacteria. A culture medium must contain…
Q: A culture of bacteria is found to have a DRT of 2 minutes. How long would it take to reduce the…
A: Heat is used for sterilization of those substances that can withstand it over longer periods or…
Q: Discuss why you should incubate bacterial plate upside down with the lid at the bottom:
A: Management of the culture plates is important in the microbiology laboratory. It is studied under…
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: You observe a culture of bacterial cells that has been grown in liquid thioglycolate media and…
A: Thioglycolate broth is a differential medium enriched with several nutrients such as casein, yeast…
Q: Describe how to measure the effectiveness of a chemical disinfectant.
A: A chemical liquid or a substance that is used to kill microbes is referred to as a disinfectant.…
Q: What happens if you decrease or increase the concentration of antimicrobials used on the plates.…
A: The kirby Bauer method is the official method disc's of a single, usually high content of antibiotic…
Q: microbiology
A: For to obtain cultures and Sensitivity faster, depends on targeted bacterial strain. The media…
Q: In relation to steps in product development in industrial microbiology explain why optimization of…
A: Fermentation is a metabolic interaction that produces synthetic changes in natural substrates…
Q: Create a concept map for Microbiology for Enteric System
A: The enteric nervous system is also called as the intrinsic nervous system. It is the main division…
Q: Show a concept map about the aseptic technique on Transfer from Broth to Broth Culture, Transfer…
A: Aseptic techniques or sterile techniques are procedures that ensure proper handling and conduction…
Q: Produce vinegar using rice
A: Vinegar is an aqueous solution of acetic acid and trace chemicals including flavorings. Vinegar…
Q: Draw two diagrams, one showing what enzymes and products are produced when GLN is high and one when…
A: Gln in question stand for Glutamine. Glutamine is an amino-acid exist in L-form like other amino…
Q: You are working in a factory that is producing chemicals from the bacterium Corynebacterium…
A: Corynebacterium glutamicum is a facultative anaerobic gram-positive, catalase-positive, rod-shaped…
Q: You have a mixed culture containing 4 different organisms that you ihocl plate of media. When you…
A: Media or culture medium is a liquid or gel that is specifically designed to support the growth of…
Q: Make an accurate colored of what you observed on the mannitol salt agar plate.
A: Mannitol salt agar or MSA is a commonly used selective and differential growth medium in…
Q: Why are some bacteria difficult to grow in the laboratory? Relate this to what you know so far about…
A: Microorganisms are isolated and cultured for various reasons. The role of media in the culture,…
Q: who introduced the use of cotton plug in microbial culture tubes.
A: Cotton plugs are utilized in bacterial specimens and culture mediums. The cotton plugs' primary role…
Q: test a efficient test for a unkown intestinal bacteria.
A: Starch hydrolysis test is a testing method which is used to identify bacteria that can hydrolyze…
Q: Pretend you want to test whether a certain bacterium can take iron away from hemoglobin. What is the…
A: Culture media Culture media is a type of media that support the growth of bacteria and fungi and…
Q: Data Complete the data table. Table 3. Mannitol Salt Agar Bacterium Result Staphylococcus aureus
A: Mannitol salt agar is a differential or selective media. Selective media promotes the growth of some…
Q: In an experiment, the bacteria were placed in dropper bottles containing glycerol as a carbon…
A: The purpose is to kill any previous bacteria on the loop before it is exposed to the bacteria. The…
Q: Describe what you would need to provide to a bacterium that was a chemoautotroph in order for it to…
A: Autotrphs are the organisms that are capable of producing there own food either with the help if…
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: We use salting and freezing to preserve our food against bacteria. Explain why is food preserved…
A: Food preservation refers to the practices of food processing that reduce the deterioration of food…
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: Bacteria can grow in thelaboratory as a suspension in liquid _________
A: It is an environment which supplies necessary nutrients for the growth of microorganisms. Nutrient…
Q: Use the following diagram to explain how Pasteur’s swan-necked flasks prevent contamination of…
A: Introduction The name "Swan Neck Flask" comes from Louis Pasteur's use of a particular flask with a…
Q: Explain how microbial agents A through D in the following diagram compare in effectiveness against…
A: It is used to determine the susceptibility of a given test organism (clinical) against a range of…
Q: Write a note on the measurement of growth of microorganisms, factors influence microbial growth and…
A: Microbial growth can be defined as the growth of a population or an increase in the number of cells,…
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: giving examples to illustrate your answer define both selective media and enrichment media as might…
A: For research purposes every microbiologist must eventually grow bacteria in the laboratory.…
What would be the best answer?
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 1 images
- When culturing microorganisms, you must ensure you work to prevent unwanted contamination. In doing this you are using ______________________________technique.You perform a nitrate test. After adding solutions A and B, the broth remains colorless. Why should you not interpret this as a negative test? What do you do next, and how do you interpret the results?The microscope images show two different sludges. Which sludge is preferable in a biological treatment plant. Motivate your answer.
- If you streak a sample from your nose onto a Mannitol salt agar plate and the medium turns yellow, what does that tell you? (choose all that apply) a. The organism is a yeast b. The organism ferments mannitol c. The organism is beta-hemolytic d. The organism is likely Staphylococus aureus e. The organism is acid tolerantBacteria can grow in thelaboratory as a suspension in liquid _________Show a growth curve graph of the two types of bacteria which one grows faster using a spectrophotometer
- Hello, this is microbiology, and the lab was about pure culture techniques.a) explain in your own words how to do a nitrate reduction test to identify unknown bacteria b) explain in your own words how to perform a phenol red broth (prb) test to help identify unknown bacteriaWhy are some bacteria difficult to grow in the laboratory? Relate this to what you know so far about the nutrients that are added to media.
- A bacterium is grown in an environment with tryptophan added to the medium. Describe how the bacteria would respond"James inoculated a species of bacteria into KIA media and realized that it has a yellow butt and a red slant. If this same organism was inoculated on McConkey agar, it will likely result in?" red colonies colorless colonies green colonies blue colonies yellow coloniesYou begin with an overnight culture of approximately 108 organisms/ml and need a concentration of 103 bacteria/ml in order to get a countable spread plate. Describe how you would dilute your sample.