Explain Roots, Stems and Leaves in Plants

Roots
Primary Growth of Roots: Growth in Length
A major part of the root is the root cap; the root cap is the covering on the end that protects the growing root. Cells in the root cap are aware of the direction of gravity and direct the root growth accordingly. As the root grows the outer cells of the root cap gradually get scraped off, as to be expected when growing in the rough soil particles. Another function of the root cap is to support the apical meristem. The apical meristem is the site where cells divide and produce new cells for both the root and root cap. …