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Unformatted text preview: receiving cell. Some gated ion channels respond to electrical signals, instead of ligands. Concept 11.3 Transduction: Cascades of molecular interactions relay signals from receptors to target molecules in the cell The transduction stage of signaling is usually a multistep pathway. These pathways often greatly amplify the signal. If some molecules in a pathway transmit a signal to multiple molecules of the next component in the series, the result can be large numbers of activated molecules at the end of the pathway. A small number of signal molecules can produce a large cellular response. Also, multistep pathways provide more opportunities for coordination and regulation than do simpler systems....
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- Fall '10