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Root - Coggle Diagram
Root
Diverse types of roots
Prop roots
Aerial roots of rochids
Storage root
Root nodules and nitrogen fixation
Contractile roots
Haustorial roots
Mycorrhizae
Internal structure of the root
Zone of elongation
Lies behind the root apical meristem
Zone of maturation
Root hair grows out increasing absorption of water and minerals
Root Apical Meristem
Forms new apical meristem
Mature portions of the root
Continuous endodermis maturation results in formation of watertight sheath around the vascular tissue
Root cap
Cells are small and meristematic when formed first
Lateral root development
Initiated by cell divisions in the pericycle
Lateral roots are of endogenous origin
Small root primordium pushes outward
External structure of the root
Organization
Branched root system
Branched root
Lateral root
Taproot
Large absorptive surface area
Fibrous root
Structure
Root tip is where the growth occurs which is called APICAL Meristem
Zone of elongation is protected by root cap
Individual roots has no leaf, leaf scar, leaf axils or axillary buds
