GEO 509 Lecture Notes - Lecture 3: Myoglobin, Umami, Food Presentation
Document Summary
Our genes don"t tell us what not to eat we make those decisions. We only have 1 receptor that detects sweetness. We have about 20 receptors that detect bitterness. Bitter plants can harm us where nothing really sweet harms us. All humans don"t taste the same thing. The way the brain interprets the food varies from person to person. However important taste is we don"t detect taste fully without smell. Our body has 4 genes that govern our sense of sight. Our body has about 1000 that govern our sense of taste and smell. Smell amplifies what goes on our tongue, about 90% Volatile gasses are produced when we ingest something, through our nostrils, down our throat. Layer of nerve cells (olfactory epithelium) located at the back of your nose right between the eyes. Your olfactory senses are the senses of smell. Your smell alerts what is going into your mouth.
