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Tissues And Growth of Stems - Coggle Diagram
Tissues And Growth of Stems
Basic Types of Cells and Tissues
Sclerenchyma
Primary and secondary walls
Many dead at maturity
Provide elastic support and some involved in water transport
Collenchyma
Unevenly thickened primary walls
Typically alive at maturity
Provide elastic support
Parenchyma
Thin primary walls
Typically alive at maturity
Many functions
External Organization of Stems
Phyllotaxy
Alternate leaves
Opposite leaves
Decussate leaves
Whorled leaves
Distichous leaves
Buds
Axillary buds
Bud scales
Terminal bud
Internal Organization of Stems
Epidermis
Cortex
Vascular tissues
Xylem
Phloem
Stem Growth
Apical meristems
Subapical meristem
Metaxylem
Protophloem
Protoxylem
Metaphloem
