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Algae is divided into 7 groups, Widd Alhabeeb noura Alroshodi - Coggle…
Algae is divided into 7 groups
1 : Diatoms :
they have characteristics like :
Phylum Bacillariophyta
Diatoms are photosynthetic autotrophs that use chlorophyll and carotenoids as pigments.
They store food as oil, making them a nutritious food source and buoyant in water.
Diatom cell walls are composed of silica
Diatoms reproduce both sexually and asexually
2: Dinoflagelletes
they have some characteristics
Phylum Pyrrophyta are dinoflagellates
Predominantly unicellular, with two flagella at right angles to one another, causing the dinoflagellate to spin as it moves.
Dinoflagellates have cell walls made of cellulose.
Some are autotrophic, some are heterotrophic
Some are bioluminescent, meaning they emit light
3 : Euglenoids
they have some characteristics
Phylum Euglenophyta, euglenoids, are unicellular plantlike protists.
Contain characteristics of both plants and animals.
Most euglenoids photosynthesize, but do not have a cell wall; they can also be heterotrophs.
algae
green algae
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