chemotaxis
Movement by a cell or organism in reaction to a chemical stimulus. Innate.
Chemotaxis is the movement of cells or organisms in response to a chemical gradient. It is a process in which cells or organisms are attracted or repelled by certain chemicals in their environment. This process plays a crucial role in many biological processes, including immune responses, bacterial infections, and wound healing.
For instance, immune cells like neutrophils must navigate their way to sites of infection in order to recognize and eliminate any pathogens present. They do this by following a gradient of chemical signals, which are released by the host when an infection occurs. The pathogens themselves may also release signaling molecules that attract or repel immune cells.
Similarly, some bacteria rely on chemotaxis to navigate towards nutrients or away from toxic substances in their environment. These microorganisms possess chemoreceptors, which are able to detect and respond to changes in the chemical gradient of their surroundings.
Overall, chemotaxis is an important biological process that helps cells and organisms navigate their way towards beneficial or avoid harmful stimuli in their environment.
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