Movements
Movements can be:
- along a chemical gradient (see chemotaxis)
- along a temperature gradient (see thermotaxis)
- along a light gradient (see phototaxis)
- along a magnetic field line (see magnetotaxis)
- along an electric field (see galvanotaxis)
- along the direction of the gravitational force (see gravitaxis)
- along a rigidity gradient (see durotaxis)
- along a gradient of cell adhesion sites (see haptotaxis)
- along other cells or biopolymers
Read more about this topic: Motility
Famous quotes containing the word movements:
“To write well, to have style ... is to paint. The master faculty of style is therefore the visual memory. If a writer does not see what he describes—countrysides and figures, movements and gestures—how could he have a style, that is originality?”
—Rémy De Gourmont (1858–1915)
“Virtues are not emotions. Emotions are movements of appetite, virtues dispositions of appetite towards movement. Moreover emotions can be good or bad, reasonable or unreasonable; whereas virtues dispose us only to good. Emotions arise in the appetite and are brought into conformity with reason; virtues are effects of reason achieving themselves in reasonable movements of the appetites. Balanced emotions are virtue’s effect, not its substance.”
—Thomas Aquinas (c. 1225–1274)
“The short lesson that comes out of long experience in political agitation is something like this: all the motive power in all of these movements is the instinct of religious feeling. All the obstruction comes from attempting to rely on anything else. Conciliation is the enemy.”
—John Jay Chapman (1862–1933)