Protists LIFE Prokaryote Archaea Bacteria Eukaryote Protista Fungi

Protists

LIFE Prokaryote Archaea Bacteria Eukaryote Protista Fungi Plantae Animalia

I) Characteristics A) mostly single-celled organisms 1) microscopic 2) eukaryotes a) nucleus, organelles 3)asexual and sexual reproduction 4)great variation in form and life style * *

II) 3 types A) animal-like protists (aka protozoans) 1) heterotrophs a) eat prokaryotes, protozoans, organic wastes 2) some parasitic a) energy from host 3) examples a) Amoeba (Cercozoan) i) special characteristics: pseudopods -locomotion and ingestion ii) live in salt water, fresh water, mud, intestines

b) paramecium (Ciliates) i) special characteristics: cilia - locomotion and ingestion ii) live in fresh water

c) Flagellates * i) special characteristic: Flagella - for locomotion ii) may be parasitic ex. Trypanosoma (African Sleeping sickness) Trichonympha (mutualism/ termites)

d) Sporozoa i) special characteristic: No locomotion ii) parasitic Ex. Plasmodium (malaria)

B) Fungus-like protists 1) heterotrophs (absorb nutrients) 2) examples a) slime molds i) found in damp soil, logs ii) crawls as mass of cells b) mildew and water molds i) most are decomposers, some parasitic

C) Plant-like protists (aka phytoplankton, algae) 1) autotrophs (photosynthesis) a) different pigments/ different colours i) ex. chlorophyll = green 2) examples a) diatoms i) special characteristic: cell wall made of silica ii) salt water

b) dinoflagellates i) special characteristics: - 2 flagella - armoured shell ii) may produce algal bloom - red tide iii) may be bioluminescent iv) may live in coral -mutualism, coral bleaching

c) Euglenoids i) special characteristic: both plant-like and an animal-like -- plant-like : undergoes photosynthesis -- animal-like: moves (flagella) & eats - Eyespot. . . positive phototropism ii) fresh water

d) Multicellular Algae i) Largest of the protists ii) Plant-like (no cell differentiation) - evolution of green plants - holdfast (no roots) iii) Red, brown, green ex. kelp, spirogyra, fucus, ulva)

LIFE Prokaryote Archaea Bacteria Eukaryote Protista Fungi Plantae Animalia animal-like fungus-like -Amoeba -slime molds -Paramecium -mildew -Flagellate -water molds -Sporozoa plant-like -diatoms -dinoflagellates -seaweed