Bacteria damage the body with two very different poisons. An exotoxin is a protein that a living cell secretes. Endotoxin is the lipid A of LPS in the outer membrane of a Gram-negative cell, and it comes out only when the cell dies. Pick a toxin, then kill the cell, add heat, make a toxoid, or give antitoxin, and watch what changes.
The toxin benchchange a control and watch
Toxin loose
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Still active
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Effect on host
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Exotoxin against endotoxintap a feature
Exotoxin
Endotoxin
Two kinds of bacterial toxinpick a toxin below
The bacterial cell right now
Heat applied to the sample—
What you add
Exotoxin is excreted, and it is a protein. Endotoxin sits in the outer membrane and comes out at the end, when a Gram-negative cell dies.