Order how Bt toxin kills a pest

Exercise and reference answers

Steps

1. Insect eats toxin
2. Alkaline gut pH
3. Crystals dissolve
4. Toxin turns active
5. Binds midgut cells
6. Pores cause lysis
7. Insect dies

Instructions

Tap the steps in the order they happen after an insect swallows the crystal.

Explanation