B6A11Coordinate

Transduction binding of signal molecule to receptor

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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...
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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.

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