Q: Why is it important for the commercial canning process to destroy the endospores of Clostridium…
A: An endospore is basically a dormant, tough and non-reproductive structure produced by some bacteria.
Q: Why is a block of agar inoculated rather than streaking the fungal culture on a plate?
A: The culture medium or growth medium is a liquid, solid, or semisolid designed to support the growth…
Q: ating and incubating an agar slant from a pure broth culture of a bacterial species such as E. coli,…
A: Aseptic transfer means transferring living microbes from one place to another without contamination…
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: What stucture of Bacillus anthracis makes it capable of surviving in powered form and natural soil,…
A: * Bascillus anthracis ia a bacteria that is rod shaped and causes anthrax disease to livestocks. *…
Q: Gram stain of Nodule Suspension Describe the morphology of the crushed nodules under microscopes…
A: The bacteria are stained with the gram stain and can be divided into two groups on the basis of the…
Q: How does colony morphology help you monitor the purity of your culture? What are disinfectants and…
A: Microbiology is the study of those living organisms which cannot be seen through naked eyes…
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: What compounds and metabolites contained in tart cherry juice extract can reduce an unwanted…
A: Inflammation is the protective response against tissue injury. It is characterised by - 1. Redness -…
Q: What is the most likely reason that Korarchaeum cryptofilum hasbeen difficult to isolate in pure…
A: Korarchaeum cryptofilum is a species that belongs to the phylum Korarchaeota, or Xenarchaeota of the…
Q: el antibiotic. Describe two variations in (a) culture substrate and (b) culture conditions you might…
A: introduction Actinomycetes are Gram-positive filamentous bacteria with fungal morphology. they're…
Q: What will the appearance of Escherichia coli be on MacConkey Agar red and Eosin Methylene Blue (EMB)…
A: UTIs are commonly caused by uropathogenic E.coli. Extraintestinal infections such as meningitis and…
Q: How would a limited food supply affect the bacterial growth curve? The lag phase would be longer…
A: Bacterial growth curve is the number of living cells plotted against time. It has four phases, these…
Q: What is culture media? Which culture media is used for gram negative bacteria and which one for gram…
A: Microbiology is the branch of science which deals with the study of different types microorganisms…
Q: how does increasing the incubation temperature at which a plate containing psychrotrophic bacteria…
A: Psychrophiles or cryophiles (adj. psychrophilic or cryophilic) are extremophilic organisms that are…
Q: How can you use the characteristics of L.monocytogenes to produce a growth medium that is both…
A: Listeria monocytogenes is a Gram-positive, facultative intracellular bacteria that can cause human…
Q: Rickettsia rickettsii as far as size, morphology, arrangements, capsule, slim/layer, endospore,…
A: The family Rickettsiaceae is named after Howard Taylor Ricketts.
Q: why is microalgae spirulina is most commonly used to reduce air pollution?
A: Pollution is the presence of harmful substances in the environment. These harmful substances are…
Q: How is agar in the petri dish prepared to grow the bacterial specimen? explain in your own words.
A: Agar is a polymer made up of subunits of sugar galactose and is a component of cell walls of several…
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: What is the oxygen requirement and gram reaction of Pyrodinium bahamense and Caulerpa lentillifera?…
A: Oxygen is a gas that is necessary for life. Oxygen is needed for respiration, which is the process…
Q: Is Bacillus cereus negative or positive for growing in high salt concentrations?
A: Bacillus cereus is a gram-positive, endospore forming, non-capsulated bacillus, motile with…
Q: What makes the cell wall of Listeria monocytogenes interesting in regard to the Gram-negative cell…
A: Listeria Monocytogenes : It is a gram positive bacteria. This bacteria can grow at temperature…
Q: How is the CTSA (coconut water tryptic soy agar) growth medium designed to meet the nutritional need…
A: Many different kinds of media are formulated in the microbiology lab to support the growth of a wide…
Q: Why are the streak plates incubated at 7°C when selecting for psychrotrophic bacteria?
A: Bacteria are unicellular, prokaryotic organisms which are devoid of membrane bound organelles and a…
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: Can culture media be sterilized in the hot air oven? why or why not?
A: Sterilization is the process of deactivating, killing, or removing any kind of microorganism (or…
Q: Can members of the genus Cytophaga be cultured on standard solidified media? Why or why not?
A: The microorganisms can be grown in-vitro by subjecting them to suitable growth conditions. The…
Q: What are the components of a carbon-free broth or minimum medium for Pseudomonas putida ? An example…
A: The most common growth media, although specialized media are sometimes required for microorganism…
Q: Name the source from where agar is commercially obtained.
A: Agar is a jelly-like substance that is made up of linear polysaccharide agarose and a heterogenous…
Q: Motile spiroplasmas cannot contain a normal bacterialflagellum; why?
A: Flagella helps in movement of the bacteria, motility.
Q: What salt media stops the growth of E.coli and Staph epidermidis?
A: Introduction :- The bacterial cell grows in various media on the basis of their requirements .As…
Q: What is the major difference between an enrichment culture and a selective culture?
A: Culture media is used for cultivating microorganisms. Both selective media and enriched media are…
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: Deodorant Phenyl will not kill which microorganism? O A. Plesiomonas O B. Treponema O C. Klebsiella…
A: The deodorant phenyl is designed to kill bacteria (usually odor-making bacteria) as well as provide…
Q: Why does uninoculated agar plates still has visible growth of microorganisms? Where do you think the…
A: Microorganisms are present in abundance in nature. When there are no aseptic conditions then…
Q: How is Indian ink used to demonstrate Cryptococcus neoformas? What reaction takes place between the…
A:
Q: what is Rose Bengel Agar?
A: Rose Bengal Agar - Rose Bengal Agar is selective medium it is used to detect and enumerates yeast…
Q: How is the medium (Mitis Salvarius agar) selective?
A: Mitis Salviarius agar is used to differentiate among species of Streptococcus and the very close…
Q: How would changing the type of bread (fresh from a bakery, no preservatives versus prepackaged with…
A: Preservatives:It is a substance that is used to protect the food products, wood, and other…
Q: Which of these structures is most resistant to chemical disinfection? (Which is hardest to kill?)…
A:
Q: Gardnerella vaginalis is a gram variable rod. What type of media should be used when culturing for…
A: Gardnerella vaginalis grows primarily on enriched culture media, dominantly used being Modified…
Q: Why is P. aeruginosa resistant to many widely usedantibiotics?
A: Pseudomonas aeruginosa is an aerobic, gram-negative bacilli that can be found in soil and plants.…
Q: How does one isolate Aconitase from a tissue sample? From the start of the tissue sampling to…
A: Aconitase is an iron-sulfur protein-containing enzyme that catalyzes citrate to isocitrate via cis…
Q: The following yeast specie(s) are strictly obligate anaerobes. O A. Leucosporidium frigidum B.…
A: Obligate anaerobes are killed by normal atmospheric oxygen concentration. They only can live in…
Q: What are the health effects of mould and air spores?
A: Mould belongs to phylum fungi. It produces spores. It grows in conditions like darkness and…
Q: What would happen if you forgot to add NaCl in culture used for isolating vibrios? Which species…
A: Vibrio bacteria are comma shaped(Curved rod shaped)bacteria; which shows mobility because of 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: 30. The optimum temperature for the growth of Mycobacte A. 25°C 8. 30°C C. 35°C D. 37°C E. 40°C
A: Mycobacterium tuberculosis is the bacteria that causes tuberculosis. TB germs are most commonly…
Q: Actinomycetes are thin, beaded, branching, positive rods that are aerobic. Nocardia spp. and…
A: **As per our guideline, we are supposed to answer only one question at a time. Please resubmit the…
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- Gardnerella vaginalis is a gram variable rod. What type of media should be used when culturing for it? Describe the appearance of the colonies.What is the most likely reason that Korarchaeum cryptofilum hasbeen difficult to isolate in pure culture?How can you use the unique characteristics to produce a growth medium that is both selective and differential that can aid in the isolation of Listeria monocytogenes?
- how can you use the unique characteristics of Listeria monocytogenes to produce a growth medium that is both selective and differential?Why is it important for the commercial canning process to destroy the endospores of Clostridium botulinum?why macconkey agar and mannitol salt are regard as salective and deffrental medium?
- How is the CTSA (coconut water tryptic soy agar) growth medium designed to meet the nutritional need of psychrotrophs and mesophiles?Why does counting multiple fields of view and calculating the average increase confidence in thw accuracy of the result? Why do we use a log phase culture of tetrahymena instead of a stationary phase culture? What effect do you think growth phase may been feeding rate?What is the laboratory's policy in decontaminating the plates? Since the growth of H. pylori was accidentally discovered, what can you conclude about it?