An electron microscopic structure, showing a portion of wall, ectoplast, endoplast, tonoplast, vacuoles nuclear structure, plastids, mitochondria etc, mounted on base with key card.
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 ...
Exhibits the various tissues and scattered closed and collateral vascular bundles in transverse and longitudinal sections in maize. The large pitted vessels, spiral and annular vessels show the anatomy of monocot stem, mounted on base with key card.
Model shows the pointed growth resulting from an apical cell with the cells which branch out spirally from point of vegetation. Root shown in longitudes & transverse section, detachable crown of the root removable, mounted on base with key card.
Set of 16, an entirely new designed model according to recent concept of chromosome changes from the resting nucleus to the formation of 4 daughter cells complete set, mounted on base with key card.
Model of a typical plant cell, magnified 50 million times. Shows the detailed structure including ectoplasm, cytoplasm, endoplasmic recticulum, vacuoles etc. Nucleus is removable, mounted on base with key card.
Model 40 times enlarged, showing the cross and longitudinal section through a 3-year old branch of lime tree (tilia platyphyllos), mounted on base with key card.
Model of HIV virus is enlarged millions of times shows the outer lipid membrane with protein structures, and the internal nucleus which contains the viral hereditary matter (RNA). The nucleus is removable and condoms can be put underneath to provide a message regarding measures to take in protecting against HIV infections, mounted on base with key card.