2005_campbl11

2005_campbl11 - Important Point: These communications are...

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1 Chapter 11: Cell Communication Important Point: Signal-Transduction Emphasis ± This chapter’s emphasis is on signals that are released from one cell and allowed to freely diffuse to a second (or more) recipient cell(s) ± These communications are deliberately initiated, received, and interpreted in order to increase the physiological coordination of the cells in multicellular organisms ± We will consider in particular those events that follow the reception of chemical signal ± We will not dwell on the purpose of the signal ± We also will not dwell on why and how a given cell released a given signal Signaling with Direct Contact Local Signaling w/o Direct Contact e.g, interferon release by viral-infected cells Long-Distance Signalling
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2 Long-Distance Diffusion Note how specificity is determined by presence/absence of receptor protein Signalling, Free-Living Cells Cell-Cell Chemical Signaling ± Three general categories of chemical signaling: Cytoplasmic connections between cells
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This note was uploaded on 12/07/2011 for the course BIO 113 taught by Professor Staff during the Fall '09 term at Rutgers.

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2005_campbl11 - Important Point: These communications are...

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