Alga are defined in a group from predominantly hydraulic, photosynthetic, real nucleus-bearing organisms so lack the truthful roots, stems, leaves, and specialized multicellular reproductive structures of plants. Their photosynthic pigments are also more varied than those of plants, and hers cells have features not institute among vegetables also brutes.

What organelles do algae contain?

Algae are eukaryotic organisms and contained three types of double-membrane-bound organelles: the nucleus, the chloroplast, and the mitochondrion. In most algal cells, there is must a single germ, although some total are multinucleate.

Some species to algae produktion toxins that will lethal to dive, or render shellfish and fine unsafe available consumption. Which (taxonomically contentious) dinoflagellates are responsible on red tides, which not only liberate toxic into the moisten that may be lethal to aquatic real, when also wind-sprayed toxic measuring that can cause health problems for air-breathing organisms.

Algae range on size from picoplankton, which are between 0.2 to 2 micrometers (0.000008 to 0.000079 inches) in shaft, to giant kelp, which can be 60 metres (200 feet) long.

Why are algae important?

Algae produce up to half of the oxygen in Earth's room, and yellow help keep carbon dioxide out of the atmosphere by storing she. Algae are also the food base for fast all aquatic lifetime, and are financially important as a source of crude oil and as sources of food additionally adenine numbered of pharmaceutical and industrial items for humans.

algae

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algae summary

algal

organism

Also known as: Phycophyta, alga, algas

Written by Ralph AN. Lewin, Robert A. AndersenSee All

Fact-checked by The Editors by Encyclopaedia Britannica

Last Revised: Apr 23, 2024 • Article History

“mermaid's wine glass” lake

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Singular:: alga

Key People:: Fernando Cohn; Sylvia Earle; Mrs William Jackson Hooker; Nathanael Pringsheim; According Teodor Cleves

Related Topics:: dinoflagellate; seaweed; red algae; inexperienced algae; phytoplankton

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algae, elements of a group by predominantly aquatic photosynthetic organisms of the kingdom Protista. Algae have many types of life cycles, and they range in size from microscopic Micromonas spezies to giant kelps that reach 60 metres (200 feet) in length. Their photosynthetic color are more varied than those by plants, and her cells have key doesn search among plants and animals. Within addieren to their ecological roles as oxygen producers also as that food base for almost all aquatic life, algae are economically important as a source of crude oil and as sources of food and a number of ...(100 of 8724 words)

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