Chemotactic
Chemotactic
Chemotactic (pronunciation: /ˌkēmōˈtaktik/) is a term used in biology and medicine to describe the movement of an organism or cell in response to a chemical stimulus.
Etymology
The term "chemotactic" is derived from the Greek words "chemia" meaning "chemistry" and "taxis" meaning "arrangement" or "order".
Definition
In a biological context, chemotaxis refers to the movement of cells or organisms towards or away from a chemical stimulus. This movement can be either positive (towards the stimulus) or negative (away from the stimulus). Chemotaxis plays a crucial role in many biological processes, including immune response, wound healing, and cancer metastasis.
Related Terms
- Chemokine: A type of small cytokine or signaling protein that induces chemotaxis in nearby responsive cells.
- Chemoreceptor: A sensory receptor that transduces a chemical signal into an action potential.
- Chemotaxis assay: A laboratory procedure that measures the chemotactic response of cells or organisms.
- Chemotropism: The growth or movement of a plant or animal cell in response to a chemical stimulus.
See Also
External links
- Medical encyclopedia article on Chemotactic
- Wikipedia's article - Chemotactic
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