Important Features of Chlamydomonas:
(1) The plant body is a thallus, which consists of a single biflagellated cell.
(2) It is a microscopic, unicellular organism and it exhibits a very primitive type of structure.
(3) They are ovoid, spherical, ellipsoidal, or pyriform in shape.
(4) Chlamydomonas cells are provided with two anterior flagella.
(5) Each flagellum arises from a basal granule, the blepharoplast.
(6) The two flagella or cilia propel the organism by their lashing movements in water.
(7) The cavity of the cup-shaped chloroplast is completely filled with the cytoplasm in which lies a single nucleus.
(8) Pyrenoids store reserve starch in the form of layers around it.
(9) The stigma is oval or circular and it is sensitive to light.
(10) A small projection of papilla, known as apical papilla, is present in between the two anteriorly inserted flagella.
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