What are the reasons for finding Gram-positive organisms on a MacConkey agar plate?

Q: Present the ecology of Sphaerotilus natan or area where you can isolate the bacteria or the usual…

A: Sphaerotilus natan is commonly called "sewage fungus", but it is actually a rod-shaped, filamentous…

Q: What aare Agrobacterium tumefaciens ? why they are used ?

A: BASIC INFORMATION  MICROBES  They are the unicellular organisms which can not seen by naked eyes…

Q: Why are endospore forming bacteria commonly found in soil?

A: A bacteria is a cell which is susceptible to a variety of environmental stress. Any environmental…

Q: What is unusual about the bacterium Gemmata?

A: Prokaryotes are the organisms that do not have the nucleus enclosed in an envelope. These are…

Q: What would be the difference in oxygen availability in a beaker versus an inverted test tube when…

A: The availability of oxygen, as well as the abundance of nutrients (such as glucose, glutamine,…

Q: Explain whether the MacConkey agar plate inoculated with good water would show the presence of…

A: Water contamination is the presence of unwelcome particles in the water. Water bodies may become…

Q: EXPLAIN WHY STAPHYLOCOCUS AUREUS IS GRAM POSITIVE

A:

Q: Why would it be impossible for gram-positive bacteria to storesulfur as gram-negative…

A: Gram-negative bacteria are bacteria that do not retain the crystal violet stain used in the Gram…

Q: hy do we use broth for enrichment, but plates for isolation and identification?

A: What do you think of when you hear the word broth? Maybe it is a delicious liquid made from chicken,…

Q: What is Pasteurization?

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What are the differences between conditions necessary for  the green and purple sulfur bacteria to…

A: Bacteria are single-celled organisms with a limited size. Bacteria can be found almost anywhere on…

Q: What is the oxygen requirement and gram reaction of Naegleria fowleri? Is it Aerobic or Anaerobic?…

A: Naegleria fowleri is a amoeba,which are free living .They are present in soil ,water bodies,decaying…

Q: What is the laboratory's policy in decontaminating the plates? Since the growth of H. pylori was…

A: Routine decontamination of lab countertops or paintings areas needs to occur frequently. Lab benches…

Q: How do you isolate Salmonella and not E coli from a fecal sample?

A: Isolating particular microscopic organisms from a complex sample is a basic strategy in…

Q: On what medium is the membrane filter incubated? Describe the appearance of coliforms on this…

A: Membrane filter technique is used for the enumeration as well as isolation of microbes in the water…

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: what are psychrotolerant bacteria and examples of it.

A: Psychrotolerant bacteria Psychrotolerant bacteria, or those that can grow at temperatures below…

Q: What is the most common bacterial STI in the United States?

A: STI:[Sexually Transmitted Infections]            STI are also commonly called Sexually Transmitted…

Q: Which bacterium reduces nitrates in soil to nitrogen?

A: Nitrogen is needed by the organism for producing amino acids. Atmospheric nitrogen cannot be used as…

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: record the results for the slant and butt of the Kligler's Iron Agar tube for shigella spp

A: Introduction Carbohydrate fermentation is detected using Kligler's Iron Agar (KIA). The KIA reaction…

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  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 information can obtain from observing the growth of bacteria on liquid agar?

A: Liquid agar is a liquid media mixed with agar which when heated solidifies and then is used as a…

Q: Describe the morphology, arrangement and Gram reaction of the bacteria on the slide. If there is…

A: Morphology deals with size, shape, and arrangement of cells.   * Arrangements of cells :-  Microbes…

Q: Is brocadia anammoxidan Gram positive or negative?

A: Based on the composition of cell wall, bacteria are classified in two groups. One is Gram-positive…

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: What are some of the reasons for a gram-variable reaction?

A: Gram staining is a common technique used to differentiate two large groups of bacteria based on…

Q: Is this microbe a gram positive or gram negative? what is the morphology?

A: PRINCIPLE OF GRAM'S STAININGThe structure of the organism's cell wall determines whether the…

Q: Of what importance are spore-forming bacteria in the food industry?

A: Food industry is the fastest growing industry nowadays. This industry have explored a lot of…

Q: What is the Gram reaction and oxygen requirement of Sporothrix schenckii?

A: Sporothrix schenckii is considered a thermally dimorphic fungus with a ubiquitous distribution. It…

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: What are these organisms?

A: The above Figure 1:Figure 1  with purple cocci shape represents Gram positive bacteria. Whereas,…

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: What is the correlation between the Gram reaction and growth on EMB and MSA plates?

A: Introduction Gram staining is a process by which we can differentiate between gram positive and gram…

Q: What bacterial genera are often included in probiotic foods?

A: Probiotics are live bacteria or yeasts that are good for our body, especially for our digestive…