esclerénquima 21
THE esclerénquima is a supportive tissue of some plants composed of dead cells to mature, whose secondary walls are species that are very thick and hard. Its name comes from the Greek escleros, " hard " enchyma, 34, 34 substance;.It is a stretch fabric, i.e. that it can be deformed but returns to its original form. The compound that gives their characteristics to the cell wall of the esclerénquima is the lignin present in greater or lesser extent in the cell walls of all plants. It provides high resistance to parts of the plant have continued to grow. In some cases they serve as half defensive, that give the plant resistance against the attacks of insects. Esclerenquimáticas cells differ from the colenquimáticas that have secondary walls usually lignificadas and that, when adult, often lack protoplast.I hope have served it, greetings worth (: