what is usefulness of columbia CNA agar? Can it be used to test water ?

Q: What is the relationship between the most probable number method and nitrate in soil Microbiology ?

A: Microbiology is the study of microorganisms, sometimes known as microbes, which are a diverse group…

Q: (1) What is the difference between specific growth rate and generation time?

A: As per our policy we are answering the first question only.  For the rest of the question kindly…

Q: A medium containing an abundance of substrate was seeded with 20 mg/L VSS of an active mixed…

A: Biological culture is a common laboratory method for the study of living things. There are different…

Q: Why does motility media contain a lower amount of agar than ordinary agar?

A: Agar is a phyco-colloid polymer of galactose monomers obtained from red algae (Gelidium and…

Q: Explain the imporance of using a control tube with only broth when measuring turbidity in a…

A: Introduction :- There are two types of growth medium or media which are used to grow microorganisms…

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: What is the best growth medium that contains glucose that can be used to acclimatize bacteria? and…

A: A growth medium is a liquid, solid, or semi-solid preparation that supports the growth of a…

Q: How does bacteria grow on agar plates?

A: Bacteria are the most primitive organisms on Earth. They can survive in most extreme environments as…

Q: Why is it important to first determine whether growth occurred in a different medium, such as starch…

A: Culture medium can be described as a liquid or gel medium which provides minerals and nutrients to…

Q: What are the advantages and disadvantages of the filter method in the analysis of water samples?

A: Utilising the membrane filter method, test is gone through the layer utilising a filter funnel and…

Q: If you run the motility test on Motility Medium and hanging drop for Bacillus cereus and B.…

A: Answer:  HANGING DROP TECHNIQUE : It is the special type of wet mount which is made from a drop of…

Q: What is the EFFECT and RATIONAL of Molten agar mixed with bacterial suspension has temperature…

A: Bacteria can be cultured in either a liquid media or a solid media based on the purpose of culturing…

Q: Explain the function of the ferrous ammonium sulfate in SIM agar.

A: SIM agar test is used for the differentiation of gram-negative enteric bacilli based on their…

Q: Describe how each of the following would appear when grown on EMB agar: a. Escherichia coli b.…

A: EMB stands for Eosin Methylene Blue. This media is used as a seletive stain for the gram negative…

Q: Where should a label be written on an agar plate?

A: The aseptic technique is applied in a laboratory setup to reduce the risk of contamination. It…

Q: Why must the poured Mueller-Hinton Agar not be too shallow?

A: Mueller-Hinton agar is a popular microbiological growth medium for the purpose of determining an…

Q: How to calculate for FAME yield given the dried FAME extracted of 0.021 g and the volume of culture…

A: Fatty acid methyl esters or FAME are a type of fatty acid esters. This is formed by the…

Q: Three-dimensional images of specimens can be produced using z stacks obtained from confocal…

A: Microscopy is a technique that is used to visualize small-sized objects that are not used to the…

Q: How does alkaline treatment improve the quality of agar/carrageenan extracted from the seaweed…

A: Agar is a polysaccharide created from two essential additives. Agarose and agaropectin. Agarose is…

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: What media can be used for the selective growth of Bordetella species aside from MCA with 1%…

A: The objective of the question is to identify alternative media that can be used for the selective…

Q: How to prepare wet mounts and hanging drop mounts of live specimen in microbial motility?

A: Wet mounts and hanging drop mounts of live specimen are used in microbial motility.

Q: What are the difference in the movement of microorganisms under wet mount from hanging drop…

A: There are some plus point for both the techniques like the wet Mount and hanging drop method…

Q: why do We need to Wait for the iron Agar to set and then Add another thin layer of 45°C Iron Agar?

A: The test that uses iron agar is the Triple Sugar Iron (TSI) Test and is used to determine the…

Q: what is the purpose of agar slant and agar special slant?

A: Agar slants are made by heating agar to boiling and pouring it into a test tube. The test tube is…

Q: WHAT IS THE TYPE OF Growth patterns on Agar Slant and Broth Medium

A: Growth and morphogenesis of plant is determined by the composition of culture media. There are few…

Q: What is the advantage of the plating method over an electronic cell counting method in counting…

A: Bacteria culturing is done in order to grow the bacterial strains that are able to show resistance…

Q: What is the main advantage of using the slide culture technique for identifying molds?

A: Side Culture - It is a rapid method of preparing fungal colonies for examination and identification.…

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 IN INDOLE TEST A COLORED RING FORM AT THE TOP OF THE CULTURE MEDIA BUT NOT THE WHOLE CULTURE…

A: Indole test is a biochemical test for distinguishing between Enterobacter aerogenes and Escherichia…

Q: What are the advantages and disadvantage of using spectrophotometry and CFU counting to estimate…

A: Spectrophotometry and colony-forming units (CFUs) are two different methods for quantifying…

Q: Do you think that you will be able to determine the CFU’s in the food samples by counting the…

A: In order to maintain organisms or to ensure that subcultures from isolation plates are pure before…

Q: What adjustments can be made to the formulation of media used for enumeration of yeasts and moulds…

A: Microbial culture is an essential method for the study of them in the lab. Proper vigil is needed in…

Q: Is nutrient agar (NA)  a complex or defined medium? Explained based on its composition. Is NA a…

A: a complex media is a media in which the exact composition is not known . it usually conatins…

Q: Why is it necessary to store the molten agar in a water bath at 50 degrees Celsius?

A: Introduction:-  Agar is made up of two polysaccharides: agarose and agaropectin, with agarose…

Q: What types of bacteria grow on nutrient agar?

A: Nutrient agar is a nutrient-rich medium that allows the growth of a wide range of organisms in the…

Q: It may seem contradictory that lyophilization can be used to preservefoods yet also be used to keep…

A: Lyophilization is a stabilizing process in which the substance is subjected to freeze drying and the…

Q: How do you prepare a Potato Dextrose agar in a 500ml glass bottle (NOT FROM COMMERCIAL POWDER)

A: Potato Dextrose Agar, also called as PDA, is a typical microbial growth medium produced using 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…