Signal (biology) facts for kids
A signal in biology is any kind of coded message sent from one organism to another, or from one place in an organism to another place.
- Vocal calls
- Some social behaviours
- Chemical signals
- inside organisms
- nerve transmission
- hormones
- inside cells
- between organisms
- inside organisms
In biology, especially in electrophysiology, a signal or biopotential is an electric quantity (voltage or current or field strength), that is caused by chemical reactions of charged ions. Biological signals can also be seen as an example of signal (electrical engineering).
Another use of the term lies in the transfer of information between and within cells, as in signal transduction.
Other pages
Images for kids
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Different types of extracellular signaling
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Differences between autocrine and paracrine signaling
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Transmembrane receptor working principle
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The AMPA receptor bound to a glutamate antagonist showing the amino terminal, ligand binding, and transmembrane domain, PDB 3KG2
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A G Protein-coupled receptor within the plasma membrane.
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VEGF receptors are a type of enzyme-coupled receptors, specifically tyrosine kinase receptors
See also
In Spanish: Comunicación celular para niños
