smell receptor deficiency occur when we smell something but do not know what is it.
What is smell receptor?
Smell receptor can be regarded as the protein capable of binding odour molecules which is essential in the process of the sense of smell (olfaction) and it has the most direct route to the brain.
Failure in this smell receptor can make someone not to be able to know exactly what he's smelling.
Learn more about smell receptor at;
https://brainly.com/question/5427982
