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A: According to the question, we have to find out which of the following is an organism involved in…
Q: What effect does decreasing the incubation temperature have on bacterial growth rate? Why?
A: Bacterial growth is proliferation of bacterium into two daughter cells, in a process called binary…
Q: Why is mannitol salt agar (MSA) considered both a selective and differential agar for staphylococci?
A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…
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 is the purpose of the crystal violet, bile salts, and neural red in MacConkey Agar media?
A: MacConkey Agar or MAC is a culture medium. It is a selective and differential medium designed for…
Q: why is it that psychrotrophs placed in TSA medium are incubated at 7oC?
A: Psychrophiles are organisms that can survive and reproduce in low temperatures as low as -20 degrees…
Q: how is the streak plate technique used to isolate and purify psychrotrophic spoilage-causing…
A: Microbiology is an indispensable subject of biological sciences that concerns the study of microbes…
Q: Why are semi-solid media such as TTC deeps suitable to test motility of bacteria?
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Q: What is the Key Gross Morphology Characteristics on different Primary Plating Media for Enterococcus…
A: Various agar medium are used for plating in order to grow different gram positive and gram negative…
Q: What is the correct arrangement of the unknown bacterium growing on your MacConkey agar?
A: MacConkey agar (MAC) was the first solid differential media to be designed by Alfred Theodore…
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A: Naegleria fowleri is a amoeba,which are free living .They are present in soil ,water bodies,decaying…
Q: citrobacter freundii
A: Citrobacter freundii is a species of anaerobic gram-negative bacteria which belongs to the family…
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: Which bacterium produced a yellow halo, and how do you interpret this result? • If you grew…
A: Microbes require micronutrients and macronutrients for growth and multiplication. Required nutrients…
Q: What bacteria grow on both a MacConkey agar plate and Mannitol Salt agar?
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A: Membrane filter technique is used for the enumeration as well as isolation of microbes in the water…
Q: If SIM medium was used for motility determination for Proteus vulgaris, what noticeable change to…
A: What is motility? Motility is the ability of an organism to move by itself. Eucaryotic cells use…
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: why macconkey agar and mannitol salt are regard as salective and deffrental medium?
A: A culture medium is just water and nutrients that support microbic growth. Primary culture media for…
Q: what is the culture media for gram-positive bacteria?
A: The culture media for gram positive bacteria is Mannitol salt agar . The presence of bile salts, as…
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: what is the cause of different species of psychrotrophic bacteria growing in the CTSA medium at 7…
A: They can grow at extreme low temperatures and lead to spoilage of food by modifying the compounds…
Q: hy is nutrient broth considered as a universal growth medium for bacteria?
A: Nutrient Broth is a general-purpose medium for growing a wide range of fastidious and non-fastidious…
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: 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: What method of bacterial measurement does this graph represent? Is it considered direct, or…
A: Here Bacterial growth is measured in terms of absorbance so, bacterial growth is measured with the…
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 is the Gram Stain reaction for Enterococcus Faecalis and Proteus mirabilis?
A:
Q: why are psychrotrophic bacteria incubated at 7 degrees
A: Each species of microbe has a preferred temperature that lies somewhere between its characteristic…
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: Why are smears of capsulated bacteria not heat-fixed before staining as opposed to Gram staining?
A: Gram staining is a differential staining technique developed by Danish bateriologist Hans Christian…
Q: how often must bacteria be subcultured from a broth to maintain culture viability?
A: Answer: Sub-culturing is the method of regrowth of the bacterial cells in to a freshly prepared…
Q: Is the Mueller-Hinton Agar (MHA) a complex or defined medium? Explain based on its composition. Is…
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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: 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: Why are dilute culture media used for isolating pelagicmicrobes?
A: Pelagic habits are abundant in microbes. The diversity spans domains, however it is usually seen…
Q: Why can't gram staining be used for mycobacterium?
A: Gram staining is one of the staining techniques. This is usually used for differentiating between…
Q: What is the Fluorochrome staining technique for Mycobacterium
A: Mycobacterium - they are a type of germ. There are different kind of mycobacterium. Still others…
Q: Which bacterial type ( Gram positive or Gram negative) is more sensitive to the antibiotic…
A: Penicillin is the group of antibiotics which were originally derived from the penicillium molds. It…
Q: Why are psychrotrophic bacteria of concern to those in the food-service industry?
A: Psychotrophs are mesophiles. They can grow at a low temperature such as 4℃. And, their optimal…
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 does a streaking method used to inoculate plates result in isolated colonies? (Explain…
A:
Q: Based on the bacterial cultivation, what are the possible organisms under its gram reaction?
A: Gram reaction in microbiology is a staining procedure that is used to differentiate bacteria based…
Why are the streak plates incubated at 7°C when selecting for psychrotrophic bacteria?
Step by step
Solved in 2 steps
- What is culture media? Which culture media is used for gram negative bacteria and which one for gram positive. Also explain strercobilinogen and corpophyrin?why macconkey agar and mannitol salt are regard as salective and deffrental medium?What is the correct arrangement of the unknown bacterium growing on your MacConkey agar?
- how does increasing the incubation temperature at which a plate containing psychrotrophic bacteria might influence the quantitative dilution and plating of the smaple?Does agar concentration affect the growth and morphology of bacterial colonies? What causes dense growth and what causes minimal growth?What is the correct shape of the unknown bacterium growing on your mannitol salt agar?