Botany - Plant Kingdom Question with Solution | TestHub

Dictyota, a type of brown algae belonging to the class Phaephyceae, mainly found in marine habitat and display great variation in size and form. They may be simple branched, filamentous forms or profusely branched form called a kelps. Chlorophyll a,c, carotenoids are present along with varying range of xanthophyll which gives the various shades of brown colour. Storage form of carbohydrates in them are laminarin or mannitol.

Porphyrabelongs to the Rhodophyceae, commonly called as red algae. They marine found in warm climates. Food is stored as floridean starch similar to amylopectin and glycogen. It is used as sea-vegetable as nori in Japan and gim in Korea and are rich source of${\mathrm{V}\mathrm{i}\mathrm{t}\mathrm{B}}_{12}$.

Charais a genus of the green algae group, Chlorophyceae. They are multicellular organisms which resemble land plants due to their leaf-like and stem-like structures. Nitrogen fixing bacteria are known to grown on its surface helping in proving nitrogen as nutrients to Chara.