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How can you be certain that growth with a green metallic sheen is truly a coliform bacterium?
Wiki User
∙ 11y ago
You can't be absolutely certain without further testing.
Wiki User
∙ 11y ago
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What selective growth media is best suited for isolation of coliform bacteria?
MacConkey's agar is a selective growth media that is best suited for isolation of coliform bacteria. This bacterial is red and is gram negative. The agar plate inhibits the growth of gram positive organisms and allows gram negative organisms to grow.
What is the Excessive numbers of other bacteria in a sample that can interfere with counting coliform is called?
The excessive numbers of other bacteria in a sample that can interfere with counting coliform is called bacterial interference or bacterial overgrowth. This can lead to inaccurate results when trying to quantify coliform bacteria in the sample.
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.
Which of the following can cause excess growth of algae in water Large amounts of fecal coliform High nitrate content All of the above High phosphate content?
All of the above.
What would happen to a bacterium that did NOT form endospores when entering an extremely hot environment?
bacterias growth would be slowed
What selective growth media is best suited for isolation of coliform bacteria?
MacConkey's agar is a selective growth media that is best suited for isolation of coliform bacteria. This bacterial is red and is gram negative. The agar plate inhibits the growth of gram positive organisms and allows gram negative organisms to grow.
What is the Excessive numbers of other bacteria in a sample that can interfere with counting coliform is called?
The excessive numbers of other bacteria in a sample that can interfere with counting coliform is called bacterial interference or bacterial overgrowth. This can lead to inaccurate results when trying to quantify coliform bacteria in the sample.
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.
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 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.
Which of the following can cause excess growth of algae in water Large amounts of fecal coliform High nitrate content All of the above High phosphate content?
All of the above.
What would happen to a bacterium that did NOT form endospores when entering an extremely hot environment?
bacterias growth would be slowed
What does a endospore to to a bacterium?
Endospores allow bacteria to survive in hostile conditions where growth would be impossible such as desication or extreams of heat.
What is an organism that may limit the growth rate of an organism?
Pathogens such as a bacterium or a virus can influence the growth rate of the host organism. Virus (not really an organism) can infect a bacterium and integrate their genetic material. This changes the homeostasis of the bacteria, because viral proteins would be start producing by the host. hence the host can not grow as a normal organism after infection.
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.
How can you determine whether the zone of inhibition is due to death of a bacterium or to inhibition of growth?
How can you determine whether the zone of inhibition is due to death or the effect of the antibiotics?
