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Clostridium Botulinum - This is the most dangerous of all the bacteria. About 200 grams of the toxin would be enough to kill the entire population of the world.
It grows where there is no oxygen and a low quantity of acid and can be found on badly canned food. In such conditions the bacteria produce toxin which, if eaten, gives you a food poisoning called botulism. When food is canned, it is heated to temperatures that destroy the bacteria. Botulism is extremely rare, but you should avoid cans which are damaged in any way. The toxin from it can be very fatal.
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∙ 10y ago
Hayden Easter
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∙ 15y agothere are many harmfull organism on earth but the most toxic of them is a gram positive bacteria clostridium botulinum it secretes a neuro toxin botulin
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∙ 11y agoacinetobacter baumanii
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∙ 15y agowhat is the most toxic type of bacteria
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∙ 11y agoThe most dangerous microbe is your mom
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Is capsulated bacteria are virulent or non virulent?
capsule increases poisonous effect of bacteria thus cause more diseases so capsulated bacteria are virulent
Why was the mixture of S bacteria and R BACTERIA virulent?
The live R bacteria acquired a capsule and became live, virulent S bacteria.
What did griffin observe when he injected into mice a mixture of heat killed disease causing bacteria and live harmless bacteria?
The mice died. This was a fundamental experiment in the history of genetics and helped to establish that DNA was the information and gene carrier for all life. To understand it a little better it's important to know that the heat killed (virulent) bacteria killed the mice when it was living. And the non-virulent did not. But when combined, the non-virulent absorbed some of the DNA from the virulent and was able to make a protective coat that shielded it from the animals immune system... allowing it to kill the mice.
What did fred griffith find to be true after his experiment with the S and R strains of bacteria?
Griffith hypothesized that a chemical component from the virulent S cells had somehow transformed the R cells into the more virulent S form.
Which ecosystem is most likely to be unstable?
with virulent parasites
What does virulent bacteria mean?
Virulent bacteria are ones that are able to cause disease. Examples of potentially virulent bacteria are Staphylococcus aureus and Neisseria gonorrhea.
Is capsulated bacteria are virulent or non virulent?
capsule increases poisonous effect of bacteria thus cause more diseases so capsulated bacteria are virulent
Why was the mixture of S bacteria and R BACTERIA virulent?
The live R bacteria acquired a capsule and became live, virulent S bacteria.
How would use virulent be used in a sentence?
this bacteria is virulent strain
Why was the mixture of heat killed s bacteria and r bacteria virulent?
The live R bacteria acquired a capsule and became live, virulent S bacteria.
How Griffith prooved DNA as genetic material?
proved transforming principle not proteinchanged non-virulent bacteria into virulentbacteria by mixing with heat killed virulent bacteria
Why were the S bacteria but not the R bacteria virulent?
segovia redolfo segovia redolfo
Who is the Scientist discovered nonvirulent bacteria transformed into virulent bacteria?
Frederick Griffith discovered the phenomenon wherein exogenous DNA of heat killed virulent bacteria was taken up by a similar but non-virulent bacteria. This resulted in the transformation of the living bacterial cells into the virulent variety. This was prior to the understanding that DNA was the genetic material and the hereditary information passed onto the living bacteria was referred to as the "transforming principle." Source : Russell "iGenetics : A Molecular Approach."
What did griffin observe when he injected into mice a mixture of heat killed disease causing bacteria and live harmless bacteria?
The mice died. This was a fundamental experiment in the history of genetics and helped to establish that DNA was the information and gene carrier for all life. To understand it a little better it's important to know that the heat killed (virulent) bacteria killed the mice when it was living. And the non-virulent did not. But when combined, the non-virulent absorbed some of the DNA from the virulent and was able to make a protective coat that shielded it from the animals immune system... allowing it to kill the mice.
What did Griffith find to be true after his experiments with the s and r strain of bacteria?
Griffith hypothesized that a chemical component from the virulent S cells had somehow transformed the R cells into the more virulent S form.
What was the experimental variable Avery used when he repeated Griffith's work?
Avery used enzymes to break down different components of the heat-killed virulent bacteria to determine which component was responsible for transforming the non-virulent bacteria. This allowed him to identify DNA as the genetic material responsible for the transformation.
What did fred griffith find to be true after his experiment with the S and R strains of bacteria?
Griffith hypothesized that a chemical component from the virulent S cells had somehow transformed the R cells into the more virulent S form.
