How does the Bt toxin protein kill the insect | vedclass

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(C) The $Bt$ toxin protein exists as an inactive protoxin in the bacterium $Bacillus$ $thuringiensis$. When an insect ingests the inactive toxin,it re

Vedclass · Accepted Answer

The activated toxin binds to the surface of midgut epithelial cells and creates pores,which causes the cells to swell and lyse,leading to the death of the insect.

Vedclass · Answer

(C) The $Bt$ toxin protein exists as an inactive protoxin in the bacterium $Bacillus$ $thuringiensis$. When an insect ingests the inactive toxin,it reaches the midgut of the insect. Due to the alkaline $pH$ of the insect's gut,the inactive protoxin is converted into an active toxin. This active toxin binds to the surface of the midgut epithelial cells and creates pores. These pores cause cell swelling and lysis (bursting),which eventually leads to the death of the insect.

How does the $Bt$ toxin protein kill the insect?

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