Question

define receptor____''________​

Answer 1

Answer:

An organ respond to light ,heat or other external stimulus.

Answer 2

❤RECEPTOR :

In cell biology, receptors are special structures that can be found in cell membranes. These are made of protein molecules such as glycoproteins. Receptors bind (attach) to specialised molecules. The process is called signal transduction: The binding starts a chemical change on the inside of the membrane.