Protists

A comprehensive set of flashcards covering the key concepts related to protists, their classifications, and characteristics.

Eukarya

A domain consisting of organisms with complex cells organized into a nucleus.

Protists

Eukaryotes not classified as animal, plant, or fungi, often diverse and informally classified.

Ciliates

A class of protists characterized by their use of cilia for movement and feeding.

Flagellates

Protists that move using flagella.

Sarcodinids

Protists that use pseudopodia or false feet for movement.

Endosymbiosis

A hypothesized process where prokaryotes gave rise to eukaryotic cells through engulfment.

Primary endosymbiosis

The engulfment of a bacterium by a free-living organism.

Secondary endosymbiosis

Occurs when a eukaryotic cell engulfs another eukaryotic cell that is the product of primary endosymbiosis.

Euglena sp.

A genus of euglenoid excavate protists that can be photosynthetic or saprophytic.

Trypanosoma sp.

A genus of kinetoplastid excavate protists, some species of which cause sleeping sickness.

Diatoms

Unicellular algae important for organic carbon fixation, with cell walls made of silicon dioxide.

Stramenopila

A diverse group of protists including diatoms and brown algae, characterized by straw-like hairs on flagella.

Alveolata

Characterized by sac-like vesicles called alveoli that lie under the plasma membrane.

Dinoflagellates

Marine protists with two flagella, some having photosynthetic abilities and causing red tide.

Rhizaria

Planktonic marine organisms with narrow pseudopodia, some with shells made of silica or calcium carbonate.

Amoebozoa

Phylum of amoeboid protists that move via pseudopodia and can undergo phagocytosis.

Mycetozoa

Commonly known as slime molds, a group within Amoebozoa with evolutionary convergence to fungi.

Chlamydomonas sp.

A unicellular green algae in the Phylum Chlorophyta, important for studying cellular organization.

Spirogyra sp.

Filamentous green algae in the Phylum Chlorophyta, known for its unique chloroplast shapes.

Volvox sp.

Colonial green algae in the Phylum Chlorophyta, with differentiated cells for reproductive functions.

Caulerpa sp.

Multicellular green algae known for its frond and rhizoids, commonly found in marine environments.

Rhodophyta

Phylum of red algae, important for tropical reef formation, containing the pigment phycoerythrin.