Q: What is the function of a selective media? What are 3 examples and for what they are selective?
A: Media is a type pf culture which are used for stimulating the action of a microorganism or to…
Q: Which of the following type of transport processes is commonly used by bacteria in a…
A:
Q: Biofilms often consist of multiple species of bacteria.True or false?
A: Bacteria are the prokaryotic organisms. They are unicellular type.
Q: How would light shone on one side of the column influence the growth of microorganisms?
A: Different microbes have different growth requirements. It can be minerals , temperature, ph ,…
Q: What terms are used to describe organisms whose growthpH optimum is very high? Very low?
A: In the living world, we see a large number of microorganisms, animals and plants. These organisms…
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: Based on your observations of microorganisms in their living state, which between the wet mount…
A: the hanging drop method is better because it allow for longer time visualisation .
Q: What if the purpose of bacterial culture? Why might it be useful to grow bacteria?
A: According to question what is the purpose of bacterial culture. Why might it be useful to grow…
Q: Why do you suppose endospore-forming bacteria are commonly found in the soil? Suppose your unknown…
A: Endospores are dormant, tough, vegetative structure produced by the bacteria from the Firmicute…
Q: How to produce high yield of biomass of facultative anaerobic bacterium in laboratories?
A: Facultative anaerobic organism It refers to the organism that generates ATP through the process of…
Q: What is the difference between defined media and complex media?
A: media is a solution in which is rich in nutrients. it is very suitable for the growth of microbes…
Q: Why are extended periods of exponential microbialgrowth in nature rare and often slower than…
A: Microbial growth is the proliferation of the microbe into genetically identical daughter cells, by…
Q: Is generation time a useful parameter to indicate the types of mediabest suited to support the…
A: The advancement in science led to the formulation of several growth mediums that could support the…
Q: What are bioreactors ? How are large volume of culture maintained and processed in them ?
A: A bioreactor is a system that enables organisms (such as yeast, bacteria, or animal cells) to…
Q: When observing the endodpore slide in the microscope, what is the difference between endospore and…
A: In spore staining the dye, Malachite green is used for staining the spore, and steaming is used as…
Q: What is differential medium and differential media? Explain the difference ?
A: Difference between differential medumium - .- A differential medium support the expansion of any…
Q: Define growth. Why does the lag phase in some bacteria is short or absent and the log phase of the…
A: Grоwth, the inсreаses in сell size аnd number thаt tаke рlасe during the life histоry оf аn оrgаnism…
Q: If two cultures of a facultative anaerobe were grown under identical conditions except that one was…
A: Bacteria are microscopic organisms which belong to prokaryote because these are unicellular…
Q: In what ways do the macroscopic features of bacterial colonies differ from those of molds?
A: Molds are a type of fungus. These are small, white, green, orange, purple, or black. They live…
Q: What factors can cause a lag phase in a bacterial growth curve?
A: The bacterial growth curve represents the number of live cells in a bacterial population over a…
Q: Why does a one-step growth curve differ in shapefrom that of a bacterial growth curve?
A: Growth curves are generally the description of the density of cell populations in liquid culture…
Q: temperature and light source affect the number and type of colonies that can be found in the…
A: Microbes such as bacteria, fungi, viruses are grown at the earth's surface. The atmosphere provides…
Q: An obligate halophile is an organism that requires high osmotic pressure.True or false?
A: Osmotic pressure refers to the minimum pressure that is required to stop the occurrence of osmosis…
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: For a bacterium that prefers a neutral pH and has an optimal (best) growth pH of 7, how would growth…
A: The optimum pH for the growth of microbes is the favorable pH for that organism. The lowest pH value…
Q: How would a facultative anaerobe growth curve change if it was placed in the presence of oxygen…
A: Facultative anaerobes are organisms that survive in the presence of oxygen and use oxygen for…
Q: hich method for introducing microbes on media uses an inoculation loop and the bacterial sample is…
A: Answer. The four-quadrant streak method is used for introducing microbes on media using an…
Q: Do some research and describe two or three scenarios in which it would be preferable to use a stab…
A: Identification of "bacterial isolates" has enormous importance and uses in a variety of disciplines…
Q: If you had a mixed culture that contained a Gram-negative enteric bacterium and Gram-positive…
A: MSA or mannitol sale agar used in microbiology. It encourages growth of some group of bacteria…
Q: is there a correlation between one medium supporting growth at a wide set range or organismal growth…
A: A growth medium is designed to grow different types of cells. It is also known as culture medium and…
Q: What is the equation that represents the mass balance of the exponential phase of bacterial growth?…
A: In exponential growth, a population's per capita (per individual) growth rate stays the same…
Q: Describe the difference between the appearance of surface and subsurface colonies in a pour plate.…
A: The bacteria is the unicellular prokaryotic organism that maintains a definite shape since it…
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: Why would cells that are vigorously growing when inoculated into fresh culture medium have a shorter…
A: Growth curves are generally the description of the density of cell populations in liquid culture…
Q: If the original number of cells in a sample was 12,000, how many bacteria will be present in 12…
A: The proliferation of bacterium into two genetically identical daughter cells, through the process of…
Q: How might the bacterial growth curve change if a facultative anaerobe was first monitored for growth…
A: *Facultative anaerobes are bacteria which can grow in presence or absence of oxygen. * oxygen…
Q: Define the following termonologies in brief : Focal Adhesion Biofilm Calcification and examples…
A: "Since you have asked multiple parts of the same question, we are eligible to answer only the first…
Q: What are the roles inhibitory substances and pH indicator in the selective and diffential media?…
A: Selective media - it is used for the growth of only selected microorganisms. Such as, microorganism…
Q: Would all microorganisms exhibit the same bacterial growth curve? Why?
A: The bacterial growth curve is a closed curve, it is typical in nature for all microorganisms. All…
Q: If triclosan is the active agent in antibacterial handsoaps, what group of bacteria can grow freely…
A: Antibacterial soap is the one that contains the chemical ingredients which assist in killing the…
Q: How can you account different diffusion rates of three dyes through the agarose media in the Petri…
A: Agar is used as a support medium for bacterial growth and culture in labs.This is extracted from sea…
Q: Illustrate and describe the growth curve stages a bacterial culture experiences in a closed system.
A:
Q: Given the ultimate location of aquaporins in the cell, where would they be manufactured?
A: Aquaporins (AQPs) are transmembrane protein which help in the regulation of water flow into and…
Q: On agar plate does each discrete colony represent the growth of one cell? Explain your answer. Why…
A: Question - On agar plate does each discrete colony represent the growth of one cell? Explain your…
Q: How would light shone on one side of the Winogradsky column influence the growth of microorganisms?
A: Microbiology is the study of microscopic organisms, such as bacteria, viruses, archaea, fungi and…
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 are the four basic stages of biofilm formation?
A: The biofilm is a thin mucous layer that is formed by a bacterial colony and a few other…
Q: A bacterium is inoculated into a medium containing two carbon sources, one of which is the…
A: If a bacterium is grown in a medium containing lactose and glucose, it will first utilize glucose…
Name two biological processes that operate in a fixed film-growth mode?
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Solved in 2 steps
- describe the molecular switches involved in microbial stationary growth phase. give one research article linkWhat is the best growth medium that contains glucose that can be used to acclimatize bacteria? and why?Why does bacterial growth stop temporarily when the glucose supply in the medium is used up?
- What makes agar good support for microbial growth?Describe the difference between the appearance of surface and subsurface colonies in a pour plate. If this is the same bacterial species, why do these differences in colonial growth occur?By accident, you placed a mesophile organism in a growth medium at pH 8. You expected it to die but there was some growth. What mechanism could it have used?
- Why are extended periods of exponential microbialgrowth in nature rare and often slower than ratesrecorded in laboratory settings?Why do we use turbidity as a method to measure bacterial growth? How does it work? How do you interpret the theoretical and actual results of turbidity measurements? Can you think of advantages and disadvantages to using this type of method?Is generation time a useful parameter to indicate the types of mediabest suited to support the growth of a specific organism? Explain.
- What is the equation that represents the mass balance of the exponential phase of bacterial growth? Name each variable.Do some research and describe two or three scenarios in which it would be preferable to use a stab tube vs. a growth plate. (Hint: What do bacteria use to help them move? Can motility be used to help identify many medically important pathogenic bacteria such as the Enterobacteriaceae?)Why do we study how to control microbial growth? Give concrete examples wherein our understanding of microbial growth is applied.