Plant Structure: Primary Growth
Plant Structure: Primary Growth
Prentice Hall School
Pearson Education Inc. BioCoach
Primary growth is the lengthening of the stem and roots.
All plant growth occurs by cell division and cell elongation. Cell division occurs primarily in regions of undifferentiated cells known as meristems.
Cell division in the apical meristems and subsequent elongation and maturation of the new cells produces primary growth.
The other type of growth, secondary growth, is the increase in girth of stems and roots.
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