Bordered Pit vs. Perforation Plate
Click "Simulate water flow" under each cell junction to compare how easily water crosses a tracheid-to-tracheid bordered pit versus a vessel-to-vessel perforation plate.
Tracheid — Tracheid (bordered pit)
narrow pit membrane pore
Simulate water flow
Vessel — Vessel (perforation plate)
wide open perforation
Simulate water flow
Click either button to compare flow resistance.