16. Simplest member of plant kingdom
In existence on earth for > 2 bn. yrs.
To date 30,000 species of alga have been
identified
Predominant primary producers in the
food chain of the ecosystem
PPRC/INDIA 14
17. Diverse group of plant kingdom
Photosynthetic organisms that range from
single to multi-cellular complex thalli
Freshwater & marine algae: resource of
compounds for the drug
PPRC/INDIA 15
19. Blue green algae : simplest form
Distribution : wide on terrestrial & aquatic
forms
Etyology – Cyanophyta
Myxophyta
Cyanochloronta
Cyanobacteria
Blue green algae
Blue green bacteria
PPRC/INDIA 17
23. Found in fresh water lakes & ponds
Mexico, Africa, Asian societies – consume
as food since several years
Japan – popular nutritional food
supplement
U.S. green foods contain wheatgrass,
barley grass & chlorella
PPRC/INDIA 21