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Unformatted text preview: There are slight pattern variations in the meristem initials that are genetic. As roots mature the tip region of meristem becomes inactive and is called the quiescent zone. The active meristem is just above the quiescent zone. Zone of Elongation • Cells (in their fixed positions) elongate to reach mature dimensions in the region of elongation. The vacuole plays a major role in this process, using water pressure to push against the walls to stretch the cellulose fibers as the cells elongate. Virtually all increase in root length occurs in the elongation region. Zone of Maturation • Cells mature for their specific functions and tissues in the maturation region....
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This note was uploaded on 01/08/2012 for the course BIO 213 taught by Professor Makina during the Fall '09 term at SUNY Stony Brook.
- Fall '09