Question

what is the difference between alpha and beta ligands? why human digestive system can take only alpha ligands?

Answer 1

Dear student!

Ligands are the simple molecules which are attached to the receptors like α-receptors and β-receptors to make a complex molecule.

So, for convenience, we can say the ligands at α-receptors as α-ligands and those with β-receptors as β-ligands.

In general α-receptors mediate excitation or increased activity of the effector cells while those of β-receptors mediate relaxation or decreased activity of effector clls.

Since, digestion needs activation in the effector cells ,s o they use α-receptors and hence α-ligends are used only.