Bacteriology:
2) Compare and contrast exotoxins and endotoxins.
Answer:- The pathogens secrete some poisonous substance which are harmful to the host , but helpful in the disease development . Such substance are called toxins .
The toxins may be exotoxins or endotoxins.
Exotoxins are proteinaceous, highly toxic and diffusable substances which microbes secrete in the host tissue, circulatory system, etc.
Endotoxins are less toxic and consist of glucoside lipo- protein.They are usually located in the cell wall and are liberated only after the cell disintegrates.
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