Alkaloids excite gustatory hairs at the:?

Question

Tip of the tongue
Back of the tongue
Circumvallate papillae
Fungiform papillae

Answer 1

Alkaloids are usually bitter. I don't remember exactly where the bitter receptors are, so you should probably make sure by checking in your book or your class notes - maybe it is the valate ones.

Answer 2

Gustatory Hairs

Answer 3

I think - back of the tongue.