They play a vital role in aquatic ecosystems by forming the energy base of the food web for all aquatic organisms. As autotrophic organisms, algae convert water and carbon dioxide to sugar through the process of photosynthesis.
Why is algae so important?
Algae form organic food molecules from carbon dioxide and water through the process of photosynthesis, in which they capture energy from sunlight. Algae produce an estimated 30 to 50 percent of the net global oxygen available to humans and other terrestrial animals for respiration. …
What are the three importance of algae?
Algae are economically important in a variety of ways. The natural substance can be used as a food source, a fodder, in fish farming, and as a fertilizer. It also plays a key role in alkaline reclaiming, can be used as a soil binding agent, and is used in a variety of commercial products.
What is the economic importance of algae?
Algae includes a wide range of prokaryotic and eukaryotic marine and fresh water organisms, all of which engage in the process of photosynthesis. These are economically important in many ways. It can be used as a food source, as fodder, in fish farming, and as a fertilizer.
What is the most important function of algae?
Probably the most important contribution of algae to our environment and well-being is the generation of oxygen through photosynthesis. “Algae are indispensable because they produce about half the oxygen in Earth’s atmosphere,” Graham told LiveScience.
What are the biological and economic importance of algae?
It helps in maintaining the health of the marine ecosystem because algae are naturally absorbent of carbon dioxide and also provide oxygen to the water. 4. Fertilizer: Algae are rich in minerals and vitamins. So they also used as liquid fertilizer which helps in the repairing level of nitrogen present in the soil.
How are algae used in agriculture?
Algae play an important role in agriculture where they are used as biofertilizer and soil stabilizers. Algae, particularly the seaweeds, are used as fertilizers, resulting in less nitrogen and phosphorous runoff than the one from the use of livestock manure. … Seaweeds are an important source of iodine.
How is algae useful as food?
Algae have been used as human food for thousands of years in all parts of the world. … Several macroalgae are also the source of hydrocolloids such as agar-agar and carrageenan which are widely used in the food industry as stabilisers, thickeners and gelling agents.
What is the importance of algae in the evolution of plants?
The algae changed the atmosphere of the planet, gave rise to the land plants, provide half of the planet’s annual oxygen supply, are directly responsible for all seafood, and indirectly responsible for all “land food,” and they help supply fixed nitrogen to support life on the planet.
What is special about algae?
Their photosynthetic pigments are more varied than those of plants, and their cells have features not found among plants and animals. … Algae also lack true roots, stems, and leaves—features they share with the avascular lower plants (e.g., mosses, liverworts, and hornworts).