Question

are olfactory receptors modified touch receptors that are altered to bond to odor molecules ?

Answer 1

Touch receptors concern general sensations.Olfactory receptors are not modified touch receptors.The olfactory control the special sense that is olfaction(smell).They also known as odorant receptors responsible for detection of ordorants which gives sense of smell.There are 100 million olfactory receptors present in the human nose .smell depends on sensory receptors that responds to air brone chemicals.In humans these chemoreceptors are located in olfactory epithelium.These olfactory receptors are G-Protein coupled receptors these protein binds to odour molecules thatbplays a role in the sense of smell the activated olfactory receptors results in olfactory receptors sending an impulse which transmits information about odour to the brain and olfactory system.