<prompt> Example of direct chemoreceptors are:Olfactory receptor neuron.Taste buds.Vomeronasal organ.All of the above.  <response>: Chemoreceptor Chemosensor is a sensory receptor that transduces a chemical signal into an action potential. There are two main classes of chemosensor.a Direct:Taste buds are direct chemoreceptors. Aqueous chemical compounds come into contact with chemoreceptors in the mouth such as taste buds on the tongue and trigger responses.b Distant: Olfactory receptor neurons in the olfactory system. The main olfactory epithelium MOE and the Vomeronasal organ VNO detects odorants and pheromones respectively. 