Auxin induce photoroplem. Expt upper block lees • horizontal Coleoptile Agarblock afe Howablock bending vomore Condusion more auxinin lower side alisorbed byagar block more auzin in lower block Role of root cap for gravity perception root cap-sense gravity expt (A) -Roof root -Root calp vertical Remove cap removal of bay root cap ngas block placed on decapitated bweragablock Coleoptile Upper agas block bending iders + las uxinin uppa block Jelongation growth slimulated bend lass side with savaining half cap horizontal 1085 of gravitropim Graviopiar in Reel dal ER Root cap fhelps for geavily perception by stacytes in columell ↓ organelle - Stato lylb (amyloplast) locates over speužilize ER Noddal ER. →Horizontally Placed noot Slakklyth reorganize into the bottom site open mechono gated Cart channel in nodal ER PIN prolein vesicle fused to the bollom side, more auzin flow to bottom Alde 4. auxin growth in root more growth in upper side, rost bend downward. Gravitropirm in shoot Gravity sensing cell Starch sheath organelle amyloplast Horizontally placed shoot amyloplast reorganze @ballom side pin protein @bottom Tauxio Promote shoolgrowth more growth in bottom 4 eboot bend upward. Phototropiem Blue ligh Phot receptor NPH →PIN vesicle jose lodark (E) moregrowth more auxin @Darksid less auscin @light side Pork More PIN@daik side bend light moreg.cowth In Daik side Plont bend towards light