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Lesson 2: Plant FormMonocots vs Eudicots (dicots)MeristemsUndifferentiated plant tissueCell divide indefinitely by mitosisGive rise to new cells New cells differentiate Apical MeristemsRoots and shootsGrowth in lengthPrimary growthPrimary tissuesPrimary meristemsoProtodermoProcambiumoGround meristemoIntercalary meristem
Lateral Meristems(gymnosperms/udicots)Secondary growthGrowth in diameterSecondary tissuesVascular cambiumoGives rise to secondary xylem and phloemoSecondary phloem becomes part of the bark Cork cambiumoGives rise to cell that form the outer bark ofthe plantWoody plants
Living Systems are organized into HierarchiesOrganization of the plant bodyCellsoSize of vacuoleoAlive at maturity or notoPrimary vs secondary cellwallTissuesoDermal oGroundoVascularThe primary cell wall is outside the secondary wall because the addition of cellulose is produced at the cell membrane Dermal TissueProtectionEpidermisoDerived from embryo or apical meristem (1 cell layer thick)o