IAA causes cell elongation by activating proton pumps in cell walls, lowering pH to activate enzymes that break bonds, increasing cell wall plasticity, and allowing water entry via osmosis.
L'IAA provoca l'allungamento cellulare attivando le pompe protoniche nelle pareti cellulari, abbassando il pH, attivando gli enzimi per rompere i legami e aumentando la plasticità della parete cellulare, consentendo l'ingresso di acqua per osmosi.
| Front | How does IAA cause cell elongation? |
|---|---|
| Back | - activates proton pump - H+ actively transported into cell walls - lowered pH activates enzyme which breaks bonds within cell wall - increases plasticity of cell walls - stretch more easily - water moves in by osmosis elongating cell |
Tags: tropisms
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