Protista / Protoctista

ChlorophytaChlamydomonas

Spirogyra Protista exist in unicellular , colonial and simple multicellular form Found in widespread in aquatic and damp habitat Divide in to two which is algae and protozoa

Characteristics of Algae Photosynthetic protoctists Surrounded by cell wall and cytoplasm Contain one or more vacuolesChlorophytaChlamydomonas Unicellular and motile Pear-shaped Cell wall consist of cellulose and maybe cover by mucilage Consist of photosynthetic pigment which is chlorophyll a and chlorophyll b Large cup-shape choloroplast occupied most space in chlorophyta

Red stigma/ eyespot detects change in light intensity -moving toward light and gather in optimum light intensity ( photosynthesis)Flagella move by beating its flagella

Spirogyra

Non-branching filamentous alga Live in ponds and fresh water Cylindrical walls is joined end to end to form filament Narrow peripheral layers of cytoplasm Large vacuole across which run strands of cytoplasm Nucleus is suspended by these strands in a central position Contain chlorophyll a and chlorophyll b

Euglena viridis