If you are asked to classify the various algae into distinct groups, which of the following characters you should choose? (a) Nature of stored food materials in the cell (b) Structural organization of thallus (c) Chemical composition of the cell wall (d) Types of pigments present in the cell
Option D.Algae are a group of chlorophyllous, non vascular plants with thallose plant body. Different algae show different pigments present in the cell like chlorophyll a, b, xanthophylls, carotenes, etc. These pigments provide the base for classification of various groups of algae into different classes. Members of Chlorophyceae possess chlorophyll a, b pigments, Bacillariophyceae contains diatomin pigment whereas that of Phaeophyceae has fucoxanthin, Rhodophyceae has rphycocyanin and rphycoerythrin and cyanophyceae has phycobilin pigment.