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 taken place.
Enlarged 20,000 times. The model shows delicate structure of an animal cell. Features organelles nucleus, endoplasmic reticulum, mitochondria, ribosomes respectively polysomic and Golgi apparatus. Also showing centrioles, lysosomes and fat vacuoles.