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Characteristics of Meristematic Cells:
Small, box-like cells, Large nucleus, Small vacuoles or none at all, Dense cytoplasm
Three subdivisions of the apical meristem called primary meristems: produce primary tissues
Protoderm, Ground meristem, Procambium
Located between xylem and phloem of herbaceous and woody plantsv (Responsible for production of tissues that increase the girth (circumference) of a plant)
Found in many plants which do not have a vascular cambium (e.g., grasses) Produce increases in the length of stems and/or leaves
Composed of parenchyma
cells. Tend to have large vacuoles and many contain various secretions.
Secretory Cells and Tissue
Secretory cells may function individually or as part of a secretory tissue. (flower nectar, Citrus oils, Latex etc.)
Some parts of cork cambium form
loosely arranged pockets of parenchyma
cells that protrude through the surface of the periderm.
Contain living cytoplasm and may live an extended time. (Provide flexible support for organs)
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