write a note on economic importance os algea and bryophytes?
make this answer upto 20lines please
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Answer:
The term "algae" covers many different organisms capable of producing oxygen through photosynthesis. They belong to the kingdom of Protista and occur in a variety of forms and sizes. They can exist as single, microscopic cells; they can be macroscopic and multicellular; live in colonies, or take on a leafy appearance as in the case of seaweeds such as giant kelp.
Answer:
Algae have diverse economic uses. They perform half of the total carbon dioxide-fixation on earth by photosynthesis, acting as the primary producers in aquatic habitats.
(a) Food source: Many species of marine algae such as Porphyra, Sargassum, and Laminaria are edible. Chlorella and Spirulina are rich in proteins. Thus, they are used as food supplements.
(b) Commercial importance: Agar is used in the preparation of jellies and ice-cream. It is obtained from Gelidium and Gracilaria. Carrageenin is used as an emulsifier in chocolates, paints, and toothpaste. It is obtained from the red algae.
(c) Medicines: Many red algae such as Corallina are used in treating worm infections.
Explanation: