cell commun
Signal Transduction Mechanisms Chemical Messengers and Receptors Cell Signals What kinds of environmental factors do cells respond to? 2 Chemical Signals What is the difference between hormones and parcrine factors? 3 Signal Transduction What elements are involved in cell signaling? 4 Signal Transduction What is the difference between a hydrophilic and a hydrophobic messenger? What kinds of substances fall into each of these categories? 5 Signal Transduction What is true about the attachment between ligand and receptor? What is meant by receptor affinity? What is Kd? 6 Signal Transduction What is meant by receptor down regulation? Why is a knowledge of receptor function so important? 7 G Protein-Linked Receptors What is a G protein?