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Cell Communication Chapter 11 Cells need to communicate between themselves to maintain homeostasis. Process by which signal on cell’s surface converted into specific cellular response consists of series of steps - signal-transduction pathway.

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Cell Communication

Chapter 11


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  • 3 stages to signal transduction. that diffuses to single cell - is almost touching sender.

  • 1Reception - chemical signal binds to cellular protein at cell’s surface.

  • 2Transduction - binding leads to change in receptor that triggers series of changes along signal-transduction pathway.

  • 3Response - transduced signal triggers specific cellular activity.


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  • Some involve 2 to be amplified - causes large signal.nd messengers - molecules small enough to pass through membrane.


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