 It consists of Multi cellular marine algae, that is mostly kelps  There are around 1500– 2000 species of brown algae  Famous for the 4 membranes around their chloroplasts  It differs in size from a few cells to the giant kelp that can grow up to 45 feet  One thing that separates them from other algae is that all brown algae are multi cellular

 The holdfasts are for anchoring themselves to the bottom of the ocean  The Float keeps it above the water  The Stipe Is the Structure of the Brown Algae or kelp  It lacks a xylem and phloem

 Lack flagella; gametes rely on water currents to get together  Have phycoerythrin pigment that makes them red  Not all are red; species differ in their proportions of accessory pigments.  Most abundant in warm, coastal waters of tropical oceans, deep as 260 m  Dulse - edible species with leafy form  Irish moss- used in ice cream Irish moss Dulse

Mostly aquatic Photosynthetic Plantae Structure Alternation of generations Green Volvox Type of green algae Spherical colony (500-50,000 cells) Movement: flagella Freshwater Protoplasmates Asexual reproduction: gonidium cells divide and make daughter colonies, flagella are inwards, invert when size of parents, parents die Sexual reproduction: gonidium cells make sperm and egg cells

Protist aquatic Unicellular flagellate Heterotrophic (phagocytosis) and autotrophic characteristics 3 membrane chloroplasts (from green algae), eyespot Binary fission Sea Lettuce type of green algae Edible Emits hydrogen sulphide when decomposing g3Q-hbSsI

 Green algae and red algae