Question

~When Bacillus thuringuensis enters a certain insect's body, the insect gets killed, but itself remains unaffected. Explain how it is possible.~​

Answer 1

Bcz it consist of some acids which produce protein from substance which would be toxic to some insects

Answer 2

The bt toxin protein exist as inactive protoxin but once insects ingest the inactive toxin it is converted into a active form of toxin due to alkaline Ph of the gut which solubilise the crystal.

The activated toxin binds to the surface of midgut epithelial cells and creates a pores that causes cell swelling and lysis and eventually couse death of the insects.

Hope the answer is helpful