Most algae are eukaryotic organism, meaning their cell have a nucleus and membrain-bound organelles.
Belong to domain Eukarya
Example: Chlamydomonas, Spirogyra, Volvox, Ulva, and Laminaria
Color and Pigments: They are green due to the presence of chlorophyll a and chlorophyll b
Food Storage: They store their food primarily as starch within their chloroplasts
Cell Wall: The cell walls are typically composed of cellulose.
Habitat: Predominantly aquatic, terrestrial
Color and Pigments: They get their characteristic olive-green to brown color from the abundance of the golden-brown xanthophyll pigment, fucoxanthin
Habitat: They are almost exclusively marine, thriving especially in the temperate and colder coastal waters.
Reproduction: They reproduce both asexually
Food Storage: They store food as complex carbohydrates, primarily laminarin and mannitol, not true starch.