Q: starting with four bacterial cells per milliliter in a rich nutrient medium, with a 1-hour lag phase…
A: Bacterial Growth --Bacterial Cell growth is proliferation of bacterium in to daughter cells ,…
Q: Why does a precipitate form on Sierra’s medium when inoculated with a lipolytic organism? Discuss…
A: Nutrient mediums are used to provide growth to the microorganism in invitro experiments. These…
Q: Why is it necessary to perform an enrichment procedure in isolating Staphylococcus aureus instead of…
A: Staphylococcus aureus is a Gram-positive round-shaped bacterium that is normally found in the upper…
Q: What is a selective medium? What is a differential medium?
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: How to culture the media of L. bulgaricus and S. thermophiles properly by using aseptic technique?
A: For the culture of L. bulgaricus and S. thermophiles RCA (Reinforced clostridial) agar and ST…
Q: What is the volume of broth that can be picked up by loopful of sterile inoculating loop?
A: INOCULATING LOOP It is a simple tool mainly used to pick up and transfer a small sample from a…
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: How is the CTSA (Coconut tryptic soy agar) growth medium designed to meet the nutritional need of…
A: Coconut trypic soy agar media are general-purpose, non-selective media that provide enough nutrients…
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: In the multiple fermentation tube technique does the absence of gas formation after 24 hours…
A: Coliform microbes are life forms that are available in the climate and in the defecation of all…
Q: What is the hurdle technology used to destry the microbial load in squash soup?
A: Squash soup is a liquid dish and it is present with High nutrients and low calorie i.e low carbs.…
Q: hat are the components of a carbon-free broth or minimum medium for Bacillus subtillus ? An example…
A: Nutrient media is used for the growth of different microorganisms in laboratory.
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 would you distinguish between Staphylococcus aureus and S. epidermidis on mannitol salt agar and…
A: Hi! Thanks for your question. As you have posted multiple questions and have not mentioned which one…
Q: What is the relation of microbail growth to microbial physiology?
A: Microbes are small organisms that are found in a diverse range of habitats. The rate of growth and…
Q: Is the autoclaving process absolute in killing all microorganisms? If not, what are the factors that…
A: Autoclave is an instrument or device which is used in method of moist heat sterilisation; while…
Q: What is the principle behind sterilizing media before use and before disposal
A: Microorganisms may be beneficial or harmful. The harmful microorganism causes many infections which…
Q: What enzyme is required for hydrogen bacteria to grow asH2 chemolithotrophs?
A: Lithotroph: These are the different groups of organisms that use the inorganic substance for energy…
Q: How is air contamination prevented when an inoculating loop is used to introduce or take a bacterial…
A: Biotechnology is a branch of biology, including the use of living organisms to produce products.…
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: Discuss the result of sunflowers rhizofiltration of the pond near Chernobyl.
A: The most significant impact of human activity is pollution and habitat damage. Land-use changes may…
Q: What is differential medium
A: Differential medium or indicative media contain compounds which support the growth of microbes and…
Q: Are you able to identify the lag, log, stationary and death phase in using this growth curve?
A: Microbes grown in a closed or batch culture in which certain conditions are that no nutrients are…
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 name of this media? What type of media is it? What does the yellow color indicate? What…
A: Selective media generally selects for the growth of a desired organism, stopping the growth of or…
Q: How is the generation time (g) of an exponentiallygrowing culture determined?
A: Bacteria are microorganism that most commonly occur in the soil, air, water and in adverse…
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 is selective and differential media? describe their purpose.
A: Numerous media types are employed in the study of microorganisms. The following definitions apply to…
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…
A: Mueller and Hinton in 1941 developed Mueller Hinton Agar(MHA). MHA is used for routine…
Q: Yoghurt starter culture is a mixed population of S. thermophilus and L. bulgaricus, both competing…
A: The living beings on this planet have been broadly divided into two categories - Plants and Animals.…
Q: In determination of microbial motility, what is the value of a hanging-drop perparation? what is the…
A: Hanging drop is a motility testing which helps microbiologist to view motility of bacterium.
Q: What are the roles inhibitory substances and pH indicator in the selective and differential
A: Selective media is a specially designed to select the growth of a specific microorganism in a group…
Q: Of what practical importance are air borne microorganisms to the laboratory workers? What…
A:
Q: What are the criteria for media selection and the basic requirements for media formulation for…
A: Fermentation is a metabolic process that produces chemical changes in organic substrates through the…
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: Can simply observing the colonies formed on agar plates and the results of a few biochemical tests…
A: Bacteria are of many types. They can be classified based on different properties such as cell wall…
Q: What is the proper term for an organism whose optimum growth range is between 20 and 50C but can…
A: The temperature range in which the microbe grows corresponds to the temperature at which its enzymes…
Q: Why do we grow the bacteria in minimal media when testing for citrate utilization
A: Minimal media are those that provide the minimal nutrients possible for colony development, usually…
Q: In the tripple sugar fermentation test, why is the triple sugar iron agar called a multi-test…
A: The process of chemical breakdown of complex substances into simple ones in the absence of oxygen…
Q: How is the CTSA (coconut tryptic soy agar plate) growth medium designed to meet the nutritional need…
A: TSA is a general-purpose plating medium that can be used to isolate, cultivate, and maintain a wide…
Q: Is the mannitol salt agar (MSA) a complex or defined medium? Explain based on Composition. What kind…
A: The selective ingredients of MSA the bile salts and the dye, crystal violet which inhibit the growth…
Q: What is the morphology and optimum growing conditions of Thermophilic Molds?
A: These are multicellular filamentous fungi.They have thallus which lack true root ,leaves and stem.…
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: 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…
what is the cause of different species of psychrotrophic bacteria growing in the CTSA medium at 7 degrees?
Step by step
Solved in 3 steps
- why is it that psychrotrophs placed in TSA medium are incubated at 7oC?why macconkey agar and mannitol salt are regard as salective and deffrental medium?How is the CTSA (coconut tryptic soy agar plate) growth medium designed to meet the nutritional need of the psychrotrophic bacteria present on the plate?
- How is the CTSA (Coconut tryptic soyagar) growth medium designed to meet thenutritional need of the bacteria ( psychrotrophic bacteria ) present?Draw a semi-logarithmic diagram showing the killing kinetics of a vegetative bacterial culture, assuming appropriate temperature, e.g. 100°C. Label the axes. 1.) What are the kinetics for killing bacterial spores at 100°C and 121°C 2.) and what about a mixture of different heat-resistant vegetative cells?A culture consisting of 100 litres of nutrient medium containing 12 g l-1 of growth limiting substrate is inoculated with 10g of bacteria in a batch fermenter. The yield of biomass from substrate is 0.05 g g-1 . The maintenance coefficient is 2.0 g g-1 h -1 . The specific rate of product formation due to maintenance is 1.0 h-1 . The maximum specific growth rate of the organism is 0.3 h -1 . YPX= 7.7 and product formation is directly linked with metabolism. a) What is the time required to produce 15 g of biomass? !!!!! ANS IS 3.07 HRS!!!! STEPS on how to reach this please