Which of the following organisms does not obey Koch’s postulates?
a. Cow pox virus
b. Small pox virus
c. Treponema pallidum
d. M.Tuberculosis
Answers
Answered by
2
It is definitely a very interesting question to solve and do some brainstorming.
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The answer is c.M.tuberculosis
Koch's Postulates determine if a/an microscopic organism or a microbe has the ability to cause a disease or not.
Koch's Original Postulates are:--
1. The bacterium must be present on-site of the disease.
2. The bacterium must be extracted/ isolated from the infected host & must be able to grow in pure-culture.
3.The specific disease must multiply when a pure culture of the considered bacterium is inoculated/injected into a healthy susceptible host of that particular disease.
4.The bacterium must be finally extractable/recoverable from the experimentally infected host under lab conditions.
Though there are some microbes which are obligate intracellular parasites (like chlamydia or viruses) which cannot be grown on artificial medium.
For example, M.tuberculosis, Helicobacter pylori, Chlamydia pneumoniae and Salmonella typhi did not satisfy Koch's postulates because initially there was no animal models on which experiments could be conducted, hence, the disease could also not be reproduced eventually.
**************************************************
Hope it helps and solves your query!!
*************************************************
The answer is c.M.tuberculosis
Koch's Postulates determine if a/an microscopic organism or a microbe has the ability to cause a disease or not.
Koch's Original Postulates are:--
1. The bacterium must be present on-site of the disease.
2. The bacterium must be extracted/ isolated from the infected host & must be able to grow in pure-culture.
3.The specific disease must multiply when a pure culture of the considered bacterium is inoculated/injected into a healthy susceptible host of that particular disease.
4.The bacterium must be finally extractable/recoverable from the experimentally infected host under lab conditions.
Though there are some microbes which are obligate intracellular parasites (like chlamydia or viruses) which cannot be grown on artificial medium.
For example, M.tuberculosis, Helicobacter pylori, Chlamydia pneumoniae and Salmonella typhi did not satisfy Koch's postulates because initially there was no animal models on which experiments could be conducted, hence, the disease could also not be reproduced eventually.
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Hope it helps and solves your query!!
Answered by
0
Thanks for your question ❤
OPTION D IS CORRECT ✔✔
THANKS
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