Question

what is receptor pls explain

Answer 1

receptor r located in sense organs they detect to stimulus and respond to it some receptor r gustatory receptor and olfactory receptor

Answer 2

Receptors are the special ' Cell or group of cells ,tissues' which receive stimulus from the external environment and then create proper impulse and transmit it through sensory neurons.
Like for:
Light :Photoreceptor
sound:phonoreceptor
Taste:Gustatorecepetor
smell:Oflactoreceptor
Skin:thermoreceptor