Environmental Sciences, asked by harshdeeps4629, 1 year ago

Explain the economic importance of algae.

Answers

Answered by pujasaikia
18
1. Algae are taken as food in various parts of the world. It contains a good amount of protein, carbohydrates, vitamins and fats.

2. They provide shelter to many aquatic and marine animals. Small animals like snails lay their eggs in them.

3. They have the capacity to fix atmospheric nitrogen, enriching the soil.

4. They can prevent soil erosion.

5. They can be used to produce electricity as they can split water into hydrogen and oxygen.

6. They are highly valuable for commercial products like agar-agar, algin and carrageenin.

7. They are used in preparation of ice cream, jellies and sweets.

8. They are also used as flavours in different food items.

9. They are used in cosmetics, fabrics, ceramics and textiles. They are also used in packaging.

10. They are extensively used in medicinal purpose in preventing constipation.
Answered by Anonymous
13
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economic importance:

➡️photosynthesis:

• at least half of the total carbon dioxide fixation on earth is carried out by algae through photosynthesis.
•being photosynthetic they increase the level of dissolved oxygen in their immediate environment.
•it is essential for respiration of aquatic life.

➡️Primary producers :

•algae are primary producers of energy rich compounds.
•This form the basis of food cycles of all aquatic animals.

➡️food supplements:

•many species of porphyra, laminaria and sargassum are among the 70 species of marine algae used as food.
•Certain unicellular algae like chlorella and spiral inner are rich in protein and are used as food supplements even by space travellers.

➡️hydrocolloids :

•hydrocolloids are water holding substances. certain marine brown and red algae produce large amount of hydrocolloids which are used commercially.
•algin and carrageen are hydrocolloids obtained from brown and red algae, respectively.
•agar is one of the commercial products obtained from gelidium and Gracilaria and are used to grow microbes and in preparation of Ice creams and jellies.

➡️iodine :

•fucus and laminaria are rich sources of iodine.

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thanks
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