Subject:
Chapter 11 Cell Communication Overview: The Cellular Internet Cell-to-cell communication is essential for multicellular organisms Biologists have discovered some universal mechanisms of cellular regulation The combined effects of multiple signals determine cell response The dilation of blood vessels is controlled by multiple molecules Concept 11.1: External signals are converted to responses within the cell Microbes are a window on the role of cell signaling in the evolution of life Evolution of Cell Signaling A signal transduction pathway is a series of steps by which a signal on a cell?s surface is converted into a specific cellular response Signal transduction pathways convert signals on a cell?s surface into cellular responses
