Cell Communication

3. communication by a cell targeting a nearby cell; Ex: neuron synapse
5. any molecule that binds to a specific receptor
6. Channels that connect the cytoplasm of adjacent cells, allowing communication between neighbors
8. Junction between any two cells that allow for transmission of electrical or chemical signals
10. Small, water-soluble molecules that relay signals received by cell-surface receptors; Ex: cAMP
11. electrically excitable cell of the nervous system that transmits information through chemical and electrical signals
14. transmits a nerve impulse from a neuron to any neighboring cell
15. two receptors bind to each other to form a stable complex
16. communication by a cell targeting itself
18. Cell communication from one cell to another is _________ signaling
19. converting an external signal to an internal cellular response
20. A cell stimulating itself to elicit an internal response is ________ signaling

1. induced cell death as a response a cell signal
2. any substance that alters body function when it is introduced from an external source
4. communication by releasing a hormone through the bloodstream to target a far away cell
7. substance that activates a cell receptor
9. secretions by cells of the endocrine system
12. molecule that can initiate a cellular response when activated by a specific ligand
13. substance that blocks a cell receptor
17. the cellular activity caused by the ligand