Definition structure and general characteristics of algae
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Algae are eukaryotic organisms that have no roots, stems, or leaves but do have chlorophyll and other pigments for carrying out photosynthesis. Algae can be multicellular or unicellular. ... The cell of an alga has eukaryotic properties, and some species have flagella with the “9‐plus‐2” pattern of microtubules.
GENERAL CHARACTERSTICS
Algae are the simplest multicellular plants. Some are unicellular eg. Chlamydomonas
Pant body: known as Thallus and they are avascular
Habitat: Algae are usually aquatic, either freshwater or marine and some are terresterial.
Algae are eukaryotic thallophytes.
Algae are photoautotrophs.
Storage form of food: Starch
Reproduction: Algae reproduce either by vegetative, asexual or sexual method
Vevetative method: fragmentation, hormogonia
Asexual spore: zoospores, aplanospores, hypnospores, akinetes, azygospore
Sexual method: isogamous, anisogamous, and oogamous gametic fusion