Transduction binding of signal molecule to receptor

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ule to receptor causes a change in the structure and activity of the receptor protein. Response: the altered receptor protein initiates a change in the enzymatic and/or transcriptional activity of the target cell. 2. 3. 4. EXTRACELLULAR FLUID PLASMA MEMBRANE 2 Reception Relay molecules in a signal transduction pathway 4 Response Activation of cellular response Signal molecule Figure 11.5 Major Classes of Biochemical Signal Molecules Amino acid origin a) b) c) d) II. Amino acids Modified amino acids — bioamines Oligopeptides Proteins Fatty acid origin a) b) III. Derived from chole sterol — steroid s Derived from arachidonic acid — prostaglandins Dissolved gases a) b) c) to nearby target cells. 3. Endocrine: the messenger (hormone) diffuses into the bloodstream to travel to target cells all over the body. 4. Exocrine: the messenger (pheromone) diffuses outside of the organism ’s body to travel to another organism. CYTOPLASM 3 Transduction Receptor I. Chemical Messengers & Receptors One cell re...
View Full Document

This note was uploaded on 09/02/2011 for the course BIOL 6a taught by Professor Staff during the Fall '10 term at DeAnza College.

Ask a homework question - tutors are online