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All of the following organisms produce exotoxins EXCEPTGroup of answer choicesCorynebacterium diphtheriae.Clostridium tetani.Salmonella typhi.Staphylococcus aureus.Clostridium botulinum.

Question

All of the following organisms produce exotoxins EXCEPTGroup of answer choicesCorynebacterium diphtheriae.Clostridium tetani.Salmonella typhi.Staphylococcus aureus.Clostridium botulinum.

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Solution

The organism that does not produce exotoxins among the given options is Salmonella typhi.

Here's a step-by-step explanation:

  1. Exotoxins are toxins secreted by bacteria and can cause damage to the host by destroying cells or disrupting normal cellular metabolism. They are highly potent and can cause major damage to the host.

  2. Corynebacterium diphtheriae, Clostridium tetani, Staphylococcus aureus, and Clostridium botulinum are all known to produce exotoxins.

  3. Corynebacterium diphtheriae produces an exotoxin causing diphtheria, Clostridium tetani produces a potent neurotoxin causing tetanus, Staphylococcus aureus produces a variety of exotoxins causing various diseases including food poisoning, and Clostridium botulinum produces the botulinum toxin causing botulism.

  4. Salmonella typhi, however, does not produce exotoxins. It is the causative agent of typhoid fever and operates by invading the intestinal mucosa and proliferating in macrophages. It can cause disease and damage, but not through the production of exotoxins.

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