Movement of a motile cell or organism, or part of one, in a direction corresponding to a gradient of increasing or decreasing concentration of a particular substance.
- ‘About 50 genes are involved in cell motility and chemotaxis.’
- ‘These include regulation of collagen synthesis, inflammatory cell chemotaxis, and DNA synthesis.’
- ‘They may stimulate different functions including angiogenesis, enzyme production, cell migration, chemotaxis, and cellular proliferation.’
- ‘This produces a very reasonable strategy for chemotaxis, in which the bacterium follows the concentration gradient of one sugar alone.’
- ‘This mechanism gives the bacterium its ability to follow the gradient of chemical concentration, i.e., chemotaxis.’
We take a look at several popular, though confusing, punctuation marks.