31. Each receptor neuron is a single type of olfactory receptor and is not specific to any one odorant . 32. They have three part to their antennal receptors : odorant receptors, gustatory receptors, and ionotropic receptors. 33. In other words, what is the typical concentration of odorant in the final mix piped to consumers? 34. An antennae-specific odorant receptor, CquiOR136, was demonstrated to respond to DEET and other insect repellents. 35. It's not hard to imagine an even more serious event, especially if no odorant was added. 36. TMAO decomposes to trimethylamine ( TMA ), which is the main odorant that is characteristic of degrading seafood. 37. When odorants enter the nasal cavity, they bind to odorant receptors at the base of the olfactory epithelium. 38. However, Congress would probably have to pass legislation requiring manufacturers to add such an odorant to guns and bullets. 39. The manufacturer's cost of adding an odorant to weapons or ammunition would be practically negligible, Dietz said. 40. In these experiments, acetophenone's odor was shown to activates an odorant receptor ( Olfr151 ) in mice.
