Answer Happy

How can chemosenses like olfaction allow us to detect so many different substances? The physical location of sensors in the nose or on the tongue convey critical extra information Each sensor is capable of producing many different graded responses depending on the chemical Humans can't actually detect many substances; abilities like "wine tasting" are simply self-deception There are many thousands of specific G protein-linked receptors There are many thousands of specific ionotropic receptors

Which statement is true of all hormones? They act at very low blood concentrations. There are corresponding receptors on cell surfaces. There is a specific gene that codes for each hormone. They initiate second messenger cascades in target cells. They are secreted by glands.

Which statement about hormones is false? The same hormone can cause different responses in different types of cells. Hormones are secreted by endocrine glands through ducts. Whenever a hormone encounters a cell with a receptor to which it can bind, it does bind. The receptor for a hormone may be in the plasma membrane or inside the cell. The receptor for a hormone may be on the secreting cell itself,