class 11 write a short note on importance of algae
Answers
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. ... Thus, they are used as food supplements.
Answer:
Alga is a term that includes a large group of eukaryotic, photosynthetic life forms, which are incredibly diverse. These organisms do not share a common ancestor and, therefore, are not interrelated. Economic Importance of Algae Economic uses of algae are diverse. Via photosynthesis they perform half of the total carbon dioxide-fixation on earth, acting as the primary producers in aquatic habitats.
Explanation:
(1) Food source: Most species of marine algae are edible, such as Porphyra, Sargassum and Laminaria. Chlorella and spirulina are protein-rich. They are thus used as food supplements.
(2) Commercial importance: Agar is used in jelly and ice-cream preparations. Arar is derived from Gracilaria and Gelidium. Carrageenine is used in chocolates, paints, and toothpaste as an emulsifier. Its source is red algae.
(3) Medicines: Lots of red algae like Corallina are used to treat worm infections.
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