A simple potometer is a piece of capillary tubing to which a plant has been connected. The water uptake is measured by recording the time taken for a bubble in the tube to move a set distance.

Here the capillary is replaced by the minute interstices ... is weakened by collisions with the walls of the containing tube, momentum in the direction of flow is lost. This should be contrasted ...

This protocol describes the first stages of Southern blotting: digestion of genomic DNA with restriction enzymes, separation of the resulting fragments by gel electrophoresis, and capillary ...