Chemotaxis of a single cell to
the chemoattractant cAMP: Small version
Time-lapse video microscopy (DIC optics,
60X objective) of a single cell moving toward a micropipette containing
the chemoattractant cAMP. Note that the cell changes direction in response
to movement of the micropipette by extending a new pseudopod in the direction
of the pipette tip. S. Lee, Firtel lab.