Apical Meristem Collenchyma Companion Cell Cork Cambium Cortex Dermal Tissue Endodermis Germination Ground Tissue Guard Cell Heartwood Leaf Blade Meristem Nastic Movement Parenchyma Cell Petiole Phloem Pith Plant Epidermis Primary Growth Root Cap Root Hair Sapwood Sclerenchyma Secondary Growth Sieve Tube Element Spongy Mesophyll Stomata Tracheid Transpiration Vascular Cambium Vascular Cylinder Vessel Element Xylem