Biol cell of cortex ir space 根毛 root hai
根 毛 root hair
Biology Primary Root Structure VASCULAR CYLINDER u endodermis grown pericycle cortex epidermis Vessels have matured: now roots hairs and the vascular about to form Cells elongate sieve tubes of phloem form and mature; xylems Most cells have vessel elements stopped dividing start to form Cells are dividing rapidly at apical and transitional meristems quiescent center root (no cell division)
Biology 根的初生结构 Primary Structure of Root (Dicots) 表皮 epidermis 皮层 cortex 维管柱 vascular cylinder starch grain endodermis corte v pericycle phloem
根的初生结构 Primary Structure of Root (Dicots) • 表皮 epidermis • 皮层 cortex • 维管柱 vascular cylinder
Biology epidermIs Path of water cortex Path of water root hair phloem Casparian strip xylem endodermis pericycle
Biology 内皮层 Endodermis cortex starch grain endodermis pericycle phloem ylem
内皮层 Endodermis