ABSORPTION ZONE OF ROOT

Model shows the transverse and longitudinal section of a dicotyledonous stem in which case the cambium ring has been formed but no secondary growth has yet taken place. Showing epidermis, lentice, cork layer, cork cambium, cortical parenchyma, starch sheath medullary rays, phloem, sieve plate, sieve tube, phloem parenchyma and inter fasicular cambium, Xylem, pitted vessels pith etc, mounted on base with key card.