Unit 4 · Plant Form and Function
The five groups of plant hormones (auxins, gibberellins, cytokinins, abscisic acid and ethylene), where they are made, what they do, the experiments that led to the discovery of auxin, and agricultural uses.
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.