Algae

By Davis Barber, Pete Carrol, and KC McCarthyBy Davis Barber, Pete Carrol, and KC McCarthy

• Protists can be both multi/unicellular •Has a nucleus •All are eukaryotes•Some lack a cell wall•Most have mitochondria •Some have chloroplasts-allowing photosynthesis •Have DNA and RNA

Cell Complexity and Cell Complexity and StructureStructure

Animal-like protists • Phylum Amoebas: Example Amoeba •Phylum Ciliophora: Example Paramecium •Phylum Sporozoa : Example Plasmodium •Phylum Flagellates: Example Trypanosoma Plant-like protists •Phylum Red Algae: Example Chondrus •Phylum Brown Algae: Example Laminaria •Phylum Green Algae: Example Ulva Fungus-like protists •Phylum Cellular slime molds: Example Dictyostelium •Phylum Plasmodial slime molds: Example Physarum •Phylum Water Molds, Mildews, Rusts: Example Phytophthora

                                                                                           

Coralline Algae

Algae

Amoeba

Trichonypha

Tetrahymena

Major Phyla and SpeciesMajor Phyla and Species

How Protists Feed and Obtain How Protists Feed and Obtain EnergyEnergy

Animal-Like Protists (Protozoa)Animal-Like Protists (Protozoa)

• Heterotrophic

• Must move around to obtain energy

Plant-Like Protists (Algae)Plant-Like Protists (Algae)

• Autotrophic

• Means they do no need to move around to obtain energy

• Contain chlorophyll and a chloroplastType of green algae

MITOSISMITOSIS• Parent cell divides

• Turns into two cells

• Each resulting cell is ½ size of parent cell

• Occurs in protists such as amoebas

MEIOSISMEIOSIS

•Occurs in protists such as Paramecia

•Two cells join at oral grooves

•Genetic material is transferred

•Several divisions occur, resulting in eight new cells

BASIC PROTISTSBASIC PROTISTS

•Reproduce through sexual and asexual reproduction

•Meiosis and Mitosis like any organism

ReproductioReproductionn