The Eukaryotes

Eukaryotes Generally larger than prokaryotic cells Contains a nucleus and other organelles bound by a membrane

Eukaryotes The mitochondria and chloroplast: In terms of cellular organelles, what makes the mitochondria and chloroplast unique?

Protista Extremely diverse group of eukaryotes Range from simple, single-celled organisms to giant, multicellular organisms

Protista

Protists Mainly aquatic organisms Many are symbiotic organisms Some are autotrophs Others are heterotrophs Many are symbiotic organisms Know examples!

Types of Protists Autotrophs: Undergo photosynthesis similar to plants Algae (Red, Green, or Brown) Diatoms: Single-cellular

Types of Protists

Types of Protists

Types of Protists Heterotrophs Ciliates: Flagellates Amoebas: Move by deforming cell

Types of Protists Heterotrophs Apicomplexa: Unicellular All parasitize animals Examples:

Types of Protists

Protist life cycles Simple unicellular organisms Describe the process by which these organisms undergo reproduction and a process that results in increased genetic diversity.

Protist life cycles Multicellular organisms and parasitic organisms Usually have more complex life cycles Alternation of generation

Life cycle of brown algae

Life cycle of Plasmodium Read figure 14 on page 66 of textbook Compare this life cycle with that of brown kelp