Question

1. specificity of a receptor signifies

a) downregulation of a receptor is occurring
b) signal molecule fits binding site on a receptor
c) its taco night!!!
d) integration of a number of different signals is occuring
e) receptors search for ligands

Explanation:

Receptor specificity means that a particular signal molecule (ligand) can fit into the binding - site of a specific receptor. This is a fundamental concept in cell - signaling in biology. Option a refers to receptor downregulation, option b is not related to specificity, option d is a non - sense statement, and option e is about signal integration rather than specificity.

Answer:

c) Signal molecule fits binding site on a receptor