1
Algae

• Protista that are photosynthetic autotrophs
• Diverse morphology
• Single cells, filaments, colonies, thalli
• Polyphyletic

2
Green Algae
Life size
Pandorina - clump
Chlamydomonas 1 cell
Ulothrix - filament
100 µm
Ulva - sphere
Scale bars 10 µm
Ulva - sheet
½ Life size
3
Red Algae
Polysiphonia simple thallus
Porphyra sheet
4
Brown Algae
5
Diatoms
6
Euglena
7
Euglenoid movement and Flagellar movement in
Euglena
Euglenoid movement in Eutreptiella