Kingdom Protista quiz

What domain does Kingdom Protista belong to?

Eukarya — protists are the simplest eukaryotes; once wrongly grouped as prokaryotes (Kingdom Monera), but they are not.

How are Protista members generally divided?

1) Free-living microbes (cause no disease).

—

2) Parasitic microbes (cause disease).

Are protists unicellular or multicellular?

Mostly unicellular, though some are multicellular (e.g., macroalga).

How diverse is Kingdom Protista?

A very diverse group of microbes — the most varied of all the kingdoms in terms of structure and lifestyle.

What are the three Subkingdoms of Protista?

1) Subkingdom Protozoa (animal-like).

2) Subkingdom Algae (plant-like).

3) Subkingdom Slime Molds (fungus-like).

• "Subkingdom" is not an official taxon.

Subkingdom Protozoa is classified by phyla based on what?

Locomotion structure. Protozoa are motile but are NOT animals.

Subkingdom Algae is classified by division based on what?

Photosynthetic pigment. Algae are photoautotrophs but are NOT plants.

Phylum Sarcodina — Locomotion/Structure, and Function?

• Structure: Pseudopodia ("false feet") — extensions of cytoplasm.

• Function: Movement and phagocytosis.

  • E.g. Amoeba.

Phylum Mastigophora: locomotion/structure, and function?

• Structure: Flagella.

• Function: Movement.

Phylum Ciliophora — Locomotion/Structure, and Special Function?

• Structure: Cilia.

• Function: Can create a water vortex/suction for feeding.

  • E.g. Paramecium.

Phylum Apicomplexa — Locomotion/Structure?

• Structure: Adhesions (surface structures).

• Function: Gliding movement.

Amoeba diagram — Function of pseudopodia

• Structure: Pseudopodia (extensions of cytoplasm).

• Function: Movement and phagocytosis (engulfing food).

Division Euglenophyta — Habitat?

Habitat: Freshwater algae.

• E.g. Euglena.

Division Chlorophyta pigment, and habitat?

Pigment: Chlorophyll (green algae).

Habitat: Freshwater.

Division Chrysophyta color, and habitat?

Pigment: Golden algae.

Habitat: Freshwater.

• E.g. Diatoms.

Division Phaeophyta color, and habitat?

Pigment: Brown algae.

Habitat: Marine.

• E.g. Kelp forests.

Division Rhodophyta color and habitat?

Pigment: Red algae.

Habitat: Marine, found in deeper ocean layers.

Why isn't Cyanobacteria in Kingdom Protista, despite once being called "Blue-Green Algae"?

It's prokaryotic (bacteria), now classified in Kingdom Monera.

• Not a eukaryote, so not a true protista.

What is Cyanobacteria significant for ecologically?

Simplest photosynthetic organisms and major producers of oxygen.