Q: Why do you have to boil the agar solution before dispensing it into tubes?
A: Agar is the medium which can used to grow the micro organisms in petri plates. The selected…
Q: The use of abomasum as a source of rennet is not practical. Explain why
A: Rennet is an enzyme or a substance that is produced as a coagulant and helps in the production of…
Q: what is growth rate? What is growth yield? How to control these two parameters in a chemostat?
A: Answer: Introduction: The yield (X) of a culture means the change amongst the primary biomass (X0)…
Q: How does Propionibacterium use secondaryfermentation to conserve energy?
A: Propionibacterium freudenreichii is a non-motile gram-positive bacterium. It has an important role…
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: Some exconjugants did not grow on minimal medium. On what medium would they grow?
A: Exconjugants can be described as bacterial cells, which separates following the conjugation. A…
Q: What growth factor is often supplied for cultivation of fastidious bacterial pathogens?
A: A fastidious organism requires specific nutrients for growth. In microbiology, the culture medium…
Q: Explain the purpose of the phenol red in the medium.
A: Phenol red is a water soluble dye that functions as a pH indicator in culture media. Phenol red…
Q: What kinds of organisms are used in coculture withSyntrophomonas?
A: Syntrophomonas is a gram negative bacteria belongs to Syntrophomonadaceae family. This bacteria…
Q: attern used to inoculate agar slant to get luxuriant culture. This pattern increases the surface…
A: Slant culture : A culture made on the slanting surface of a solidified medium in a test tube that…
Q: Name the source from where agar-agar is obtained.
A: Agar-agar is a gelatinous substance that is formed by a combination of linear polysaccharide agarose…
Q: How does McConkey agar serve as both selective medium and differential medium ?
A: MacConkey agar is a culture media that contain bile salts, crystal violet dye, neutral red dye along…
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: What is the primary reason that wine is pasteurized?
A: Food technology is a branch of science which deals with various aspects of food science such as…
Q: Why is the batch bioreactor is suitable in milk fermentation?
A: Batch bioreactor is a closed system and the process lasts until the nutrients are consumed.
Q: Indicate which of the following observations can be made when observing growth on nutrient agar.…
A: Colony morphology can be referred to as the visual appearance of bacterial colonies on a plate of…
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: 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 agar ideal for microbial cultivation?
A: The microbial cultivation is the process in which microorganisms are cultivated in the laboratory,…
Q: Why is nitrification a good example of a commensalistic process?
A: The ‘bacteria’ is a microscopic ‘single-cell’ organism. It does not have a nucleus and other…
Q: Phenylethyl alcohol and why would it be useful in agar
A: Acoording to this question we have to decribe phenyl alcohol and the phenylethyl alcohol be useful…
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: Describe the growth as it appears in the Broth Tube or Agar Slant.
A: Microbes are cultured for scientific and research studies on various media. This enables us to know…
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: What process would explain why the dyes spread through the agar?
A: Agar -- Agar is polymer and mixture of polysaccharides obtained from the cell wall of red algae .…
Q: Why Spirulina is used for beautification purposes? Write its specific activity and uses on…
A: Spirulina is a complete protein that includes all essential amino acids and omega-3 fatty acids, as…
Q: What is the difference between selective and differential media? Give one example of each.
A: Culture medium is referred to as a medium of nutrients that supports microbic growth. The amount of…
Q: Which media would allow positive growth in selective and differential media Thank you
A: Selective media is usually defined as a media which generally selects for the growth of a desired…
Q: what is usefulness of columbia CNA agar? Can it be used to test water ?
A: Columbia Agar is a highly nutritious base medium The addition of the antimicrobial agents, colistin…
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: Do pure cultures have to be used in a chemostat?
A: Chemostat is a culture chamber where microorganisms are cultured under static environment. The…
Q: What is agar and what makes it the best agent for making culture media? explain
A: Microbiology is the branch of science which deals the study of different microorganisms such as…
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: what is Rose Bengel Agar?
A: Rose Bengal Agar - Rose Bengal Agar is selective medium it is used to detect and enumerates yeast…
Q: Sugar Utilization medium (Containing trehalose, sucrose, trehalose, Mannose,etcUrease
A: The medium asked in the question is a fermentation medium used in carbohydrate fermentation test…
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: Which culturing method provided the clearest results, the semisolid medium tube or the soft agar…
A: Agar is a jelly-like substance obtained from red algae. It is a mixture of two components namely…
Q: Colonies that produce alkaline waste on Hektoen enteric agar will turn O blue-green. O pink. O…
A: Colonies that produce alkaline waste on Hektoen enteric agar will turn blue- green.
Q: What is "BHI" agar and what is it used for? What is "Sabouraud Dextrose" agar and what is it used…
A: There are various types of growth media are used for cultivating cells ranging from prokaryotic to…
Q: What might have been some of the culture conditions used to isolate A. fumarolicum?
A: A.fumarolicum is an Extremophile. They are acidophilic, thermophilic and methanotropic in nature…
Q: Describe the appearance of coliforms on Levine EMB agar.
A: Coliform bacteria are found in a diverse range of places like waste products of animals, water…
Q: Why does Propionigenium modestum require sodium for growth?
A: Propionigenium modestum grows from the fermentation of succinate to propionate and CO2.
Q: What is the preparation condition for culturing a mould sample?
A: Introduction: Mould is a fungal specimen which is grown in filamentous structure called hyphae. They…
Q: main goal of motility agar
A: MICROBIAL GROWTH MEDIA- It is the culture media that serves as a nutrient media for the growth of a…
Q: What is a starter culture and what is its purpose? What are the characteristics of a good starter…
A: STARTER CULTURE:- Starter culture are those microorganisms that are used in the production of…
Name the source from where agar is commercially obtained.
Agar is a jelly-like substance that is made up of linear polysaccharide agarose and a heterogenous agaropectin. This structure forms the supporting structure of algal species that is produced by boiling the algal species. It is an ingredient of various commercially available dishes like desserts, ice-cream, etc. It is also used as a solidifying agent for microbiological culture media.
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