Kingdom Protista Eukaryotic and Unicellular

Derived from Kingdom Plantae and Kingdom Animalia – Animal-like protists – Plant-like protists – Fungi-like protists

Animal-Like Protists Protozoa Heterotrophs (bacteria/microorganisms) – Engulf – Absorb Reproduction is asexual – Binary fission – Resting cells - cycts Movement: cilia, flagella, plasmodia Symbiosis

Plant-Like Protists Chlorophyll Algae (Green, brown, red) Nutrition obtained by photosynthesis – Dark period: become heterotrophs Flagellum (most have two) Eyespot for sensory Reproduce asexually – Nuclear division  longitudinal division

Fungi-Like Protists Phylum Gymnomycota (slime) Heterotrophs Reproduce with spores Movement: flagella, plasmodia – Very slow (few mm per day)

Kingdom Eubacteria and Archaebacteria Prokaryotic and Unicellular Reproduce Asexually (binary fission)

Comparison Archaebacteria – Live in extreme environments Eubacteria – Three shapes/forms Cocci Bacilli Spirillum

Respiration Obligate areobes – With oxygen Obligate anaerobes – Without oxygen Facultative anaerobes – With or without oxygen Fermentation (ethyl alcohol, lactic acid, etc.)

Nutrition Autotrophs – Photosynthesis or chemiosmosis CO2 and Water  Carbohydrates Heterotrophs – Decomposers – Parasites Not contributing to host

Reproduction Asexual – Binary fission – Similar to mitosis, but more simple DNA replicates Transferred into each new cell Cross wall Division 2 identical cells

Beneficial Bacteria Decomposers (dead plants and animals) Converting raw material into nutrients for other organisms Vinegar Food digestion Nitrogen fixation in soil Dairy products

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