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Transcript
Algae
By Davis Barber, Pete Carrol, and KC McCarthy
Cell Complexity and Structure
• 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
Major Phyla and Species
Animal-like protists
• Phylum Amoebas: Example Amoeba
•Phylum Ciliophora: Example Paramecium
Coralline Algae
•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
Algae
•Phylum Plasmodial slime molds: Example Physarum
•Phylum Water Molds, Mildews, Rusts: Example Phytophthora
Trichonypha
Tetrahymena
Amoeba
How Protists Feed and Obtain Energy
Animal-Like Protists (Protozoa)
•
Heterotrophic
•
Must move around to obtain energy
Plant-Like Protists (Algae)
•
Autotrophic
•
Means they do no need to move around to
obtain energy
•
Contain chlorophyll and a chloroplast
Type of green algae
Reproduction
BASIC PROTISTS
•Reproduce through sexual and asexual reproduction
•Meiosis and Mitosis like any organism
MITOSIS
MEIOSIS
•
•
•
•Occurs in protists such as
Paramecia
•
Parent cell divides
Turns into two cells
Each resulting cell is ½ size of
parent cell
Occurs in protists such as amoebas
•Two cells join at oral grooves
•Genetic material is transferred
•Several divisions occur, resulting
in eight new cells