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Write four characteristics of algae. |
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Answer» 1. Habitat : Algae are predominantly aquatic through alsofound in other habitats. They are found in fresh water,salty and marine water, in ice and in moist conditions.Sorne algae are found in unusual places also. 2. Thallus organisation: Plant body is thalloid which isnot differentiated into root, shoot and leavcs. They aremostly represented by Gametophvtic generation. Thallusmay be unicellular or multicellualr.Ch/amydomonas ismotile unicellular agla while hiorella is non motile unicellular aglac, Volvox is motile and colonial, Cladophora is filamentous etc. 3.They lack tissue differentiation and vascular tissues. 4. Cell wall of most of algae is made up of Cellulose and Pectin. In Brown algae (Phaeophvceae) cell wall is madeup of Alginic acid and Fucinic acid along with cellulose. In Red algae (Rhodophyceae) cell ‘all has Polyesters suphates apart from cellulose. |
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