Protists
Brown algae
The largest protists. Kelp is an example
Slime molds
Complicated life cycles, more like animals than fungi, reproduces by spores.
Green algae
Contain chlorophyll and cell walls made of cellulose.
Plasmodial slime molds
Forms a large plasmodium with many nuclei but no separate cells
Water molds
Look and act like fungi, but cell wall is made of cellulose instead of chitin.
Water mold
Looks and acts like fungus - one types causes potato blight
Apicomplexans
A type of parasitic protozoan. Some apicomplexan cause serious human disease
Psuedopod
A "false foot" or temporary bulge of cytoplasm used for feeding and movement in some protozoans.
Flagellate
A protozoan that propels itself with a flagellum
What causes red tide?
A short lived toxin released by some dinoflagellates in the presence of large fish schools.
Why can't you use movement to separate protozoa from algae?
Algae move on their own using flagella.
Golden algae
Always colonial, with yellowish pigments
Protozoans
An animal like protist that has no cell walls, is unicellular, and is mostly heterotrophic by ingestion.
Red algae
Besides brown algae, the most likely protist to be found in food
Plasmodium
Causes malaria
Diatom
Cells walls are made of silica, and dead cells may be used in toothpaste
Which groups of organisms have cell walls made of silica?
Diatoms
Extracellular digestion
Digestion that takes place outside of the cell
Which groups of organisms have cell walls made of cellulose?
Dinoflagellate,algae,molds,and chrysophytes
Which group of "algae" contains many heterotrophic forms?
Dinoflagellates
What is the adaptive advantage of alternation of generations?
Genetic diversity within the species. Without it, evolution of the species would not exist.
Which protists are most plant-like?
Green algae
Cilia
Hairlike projections that extend from the plasma membrane and are used for locomotion.
Dinoflagellate
Have two flagella and thick cell walls made of cellulose
What are the differences between cellular slim molds and plasmodial slime molds?
In plasmodial slime molds, the cells form an aggregate or a large multinucleate mass with no distinct boundaries between the cells. In cellular slime molds, the cells form a collective body with cells that have a distinct boundary and nucleus.
Cellular slime molds
Individual cells join together to make a multicellular "slug"
Euglenoid
Photoautotrophic, but has no cell wall.
Algae
Photosynthetic protists, generally classified by types of pigments, cell walls, and type of stored food.
Sporozoans
Protozoans that are always parasitic
Zooflagellate
Protozoans that move with flagella
What are the main groups of protozoans, and how are they differentiated?
Pseudopods, ciliates, flagellates, and parasitic
Alternation of generations
The alternation between the haploid gametophyte and the diploid sporophyte in a plant's life cycle.
Ciliate
Use cilia to move
Amoeba
Use pseudopods to move with flagella
What is the function of conjugation in paramecium?
When two paramecium exchange material and form a new paramecium.
Which protists are most like animals?
Zooflagellate
