Algae

TYPES OF ALGAEIES FROM:KULWINDER KAUR SCIENCE MISTRESS G.S.S.S,KASSEL GUIDEDBY ARTI BTALA

ALGAE A DIVERSE GROUP OF SIMPLE,PLANT LIKE ORGANISMS,LIKE PLANTS MOST ALGAE USE THE ENERGY OF SUNLIGHT TO MAKE THEIR OWN FOOD

TYPES OF ALGAEIES • 1.RED ALGAE • 2.GREEN ALGAE • 3.GOLDEN BROWN ALGAE • 4.BROWN ALGAE • 5.DINOFLAGELLATES • 6.CYANOBACTERIA

Green Algae

Green Algae, members of the largest phylum of the algae, numbering some 6000 to 7000 species. They are commonly known as green or grass-green algae because of their bright green color, which is imparted by two chlorophylls, a and b. Among the oldest of all organisms—the first green algae appeared more than 2 billion years ago in the fossil record—they are believed to be the most immediate relatives of the green land plants.

Red Algae

The red coralline algae belong to the phylum Rhodophyta. The red coralline algae can incorporate calcium carbonate into their cell walls, giving their body a rigid, segmented appearance and texture. Most of the red algae have the ability to carry on photosynthesis at much greater depths than other types of algae.

Golden-brown algae Golden-brown algae, brown algae, and diatoms form the large and complex phylum Heterokontophyta, with organisms ranging in size from a fraction of a millimeter to more than 100 m (300 ft) long. Heterokontophyta have carotenoid secondary pigments that tend to mask the green of the primary chlorophyll pigment, giving them a golden or golden-brown appearance.

DINOFLAGELLATES

The din flagellates are the second most important group of phytoplankton, responsible for producing energy in the ocean food chain. They have a whiplike structure called a flagellum that acts as an organ of locomotion, and the organisms demonstrate both plant and animal traits.

CYANOBACTERIA

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Cyanobacteria (formerly blue-green algae) are among the most ancient organisms on Earth. These photosynthetic organisms can be single-celled, connected in a filamentous form as shown here, or arranged in simple colonies.