Unit 4 · Plant Form and Function
The cohesion-tension (transpiration pull) theory, evidence for it, why capillarity and root pressure are not enough, cavitation and embolism, and the water potential gradient from soil to atmosphere.
Deshapriya Senevirathne. B.Sc. (Hons) Biology Special, University of Peradeniya — graduated with a class pass. All the content and lessons in A/L Biology on Paadama are reviewed by Deshapriya Senevirathne, and the lessons are taught by him.