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