Algae are of paramount importance as primary producers of energy rich compounds , so algae produce some substance which are consumed or they are consumed by others ???

Dear student,

Yes, algae are of paramount importance as primary producers of energy rich compounds like:
  • Hydrocolloids- Algin and carrageen are used commercially as water holding substances.
  • Agar produced by Gelidium is used to grow microbes and in preparation of jellies.
  • Unicellular algae like Spirullina are used as food supplements.
  • Some algae are used in fish food as they are rich in certain amino acids like lysine and threonine which are not present in fish meal prepared by crop plants.
  • Also the photosynthesis carried out by algae reduces the amount of COin atmosphere.
These substances produced by the algae are consumed by other organisms only.

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