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How can you determine whether the zone of inhibition is due to death of a bacterium or to inhibition of growth?
Wiki User
∙ 15y ago
How can you determine whether the zone of inhibition is due to death or the effect of the antibiotics?
Wiki User
∙ 15y ago
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What is the plural possessive for bacterium?
The plural form of the noun bacterium is bacteria.The plural possessive form is bacteria's.example: This will arrest the bacteria's growth.
What is it called when cell growth and division stops because the cells have run out of room?
Contact inhibition
How would you determine the growth rate of a lichen?
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What is the mold penicillium notatum known for?
penicillium notatum which was originally discovered by alexander fleming is used on sores to prevent the growth of the bacterium staphylococcus.
Why are crystal violet agar 7.5 sodium chloride agar considered selective media?
7.5% NaCl inhibits growth of certain bacteria. This type of selective media allows for the growth of Staph. A high concentration of NaCl alters the osmotic balance between the media and the bacterium, NaCl plasmolyzes the bacterium due to the hypertonicity of the medium. The circular shape of Staph allows it to better resist plasmolysis. Crystal Violet is a dye that inhibits the growth of certain Gram-positive bacteria, it does this by binding to the thick peptidoglycan layer preventing cross-linking and thus preventing cell growth.
What is a inhibition?
A density dependent inhibition is when cells become more and more numerous, the required growth factors and nutrients become insufficient making cell growth difficult.
What if a agar plate is isolated and antibiotic added and result is no growth or inhibition?
This is basically ANTIBIOTIC SENSITIVITY TEST, to test whether the given organism is RESISTANT(no zone of inhibition) or SENSITIVE( zone of inhibition) to the given antibiotic.Zone of Inhibition Testing is a fast, qualitative means to measure the ability of an antimicrobial agent to inhibit the growth of microorganisms.The effectiveness is based upon the size of zone of inhibition,diffusability of antibiotic,size of inoculum,type of media used.example: bacillus organism is inoculated with both PENICILLIN and AMPICILLIN ,zone of inhibition is absent in case of penicillin and present in case of ampicillin, this shows that ampicillin (sensitive) worked effectively when compared to penicillin.
What is a density-dependent inhibition?
A density dependent inhibition is when cells become more and more numerous, the required growth factors and nutrients become insufficient making cell growth difficult.
What criteria used to determine whether something is a live includes movement growth and what?
Yes.
Define oligodynamic action?
its the microbial growth inhibition by heavy metal ions
What factors affect the zone of inhibition?
Pathogen susceptibility influences the zone of inhibition because organisms will not grow if they are susceptible to antibiotics. Another influence are the pH levels of agar which should fall between 7.2 and 7.4 room temperature.
How does bacterium help soils?
Some bacterium have the capability of nitrogen fixation. This is where nitrogen in the atmosphere, which is inert, is taken from a bacterium and fixed into a complex molecule. This is absorbed by plants and is used and growth and herbivores depend on plants for growth and carnivores depend on herbivores for growth. Most life depends on what microorganism produce as bi-products.
What is the plural possessive for bacterium?
The plural form of the noun bacterium is bacteria.The plural possessive form is bacteria's.example: This will arrest the bacteria's growth.
What is it called when cell growth and division stops because the cells have run out of room?
Contact inhibition
What is the meaning of angiogenesis?
The inhibition of formation of blood vessels feeding the tumor and contributing to tumor growth.
Paper disc diffusion method?
Paper disc diffusion method is used to see what antibiotics or compounds inhibit bacterial growth, or are bacteriostatic. The paper discs are soaked with a select antibiotic or chemical and then placed on a lawn of bacteria in a petri dish. The zones of inhibition are measured around where the disc was placed to determine whether the bacteria was resistant or susceptible to the particular antibiotic or chemical chosen.
What kind of growth does a population of bacteria experience when jus a few of them are placed in an environment rich with resources?
It has a major increasing growth creating a change in the bacterium.
