GREEN ALGAE

"The classic "green algae" are mostly microscopic freshwater forms and large seaweed. Some species may be as large as 25 cm in width, and attain a length of 8 meters like the sea lettuce shown here. The green algae, and all other plant groups, contain firm cell walls often composed of complex compounds such as cellulose. Energy from the sun in the form of light is captured by the green algae, green plants and some bacteria through photosynthesis. This process is the route by which virtually all energy enters our biosphere."

DR. FRANCESCA T. GRIFO, FORMER DIRECTOR, CENTER FOR BIODIVERSITY AND CONSERVATION

 

 

KNOWN SPECIES

At least 7,000

SIZE RANGE

Less than 25 micro meters to 8 meters

WHERE THEY LIVE

Mostly in fresh waters and marine environments; Also in hot springs, on the surface of snow and tree trunks, and in soil

ECOLOGICAL ROLES AND HUMAN USES

At the base of the food chain; Help to purify sewage • Store carbon • Humans use green algae as food, as feed for animals, and in biological research

Spectrum of Life
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