S.N Root Stem 1. Cuticle layer and stomata is absent usually in epidermis. A thick or thin layer of cuticle always covers the epidermis. In some cases, stomata are also found. 2. Unicellular root hairs are present in epidermis. If the hair is … Read more
Introduction A permanent tissue is a group of cells that have lost the power of cell division and growth. These cells have attained their definite form and size. These cells may be dead or living, thin walled or thick walled. They are formed by the differentiation of the meristematic cells. The permanent tissue can be … Read more
Introduction Some species of bacteria particularly those of Bacillus and Clostridium, develop structures called endospores. ‘Endo’ as prefix means within and endospores are highly differentiated cells which are able to tolerate harsh environment of heat, chemicals and radiations. They are highly resistant resting phase which can survive in a dormant state through a long period … Read more
S.N Characters Dicot plants Monocot plants 1. Cotyledon Two One 2. Flower Usually penta-merous Usually tri-merous 3. Nodes and internodes Distinct nodes and internodes are absent. Distinct nodes and internodes are … Read more