Protozoa (Protists)

______ and _________ make up the protists group.

Algae, protozoa

Algae are predominately not _________, but some produce toxins when we eat _______.

pathogenic, shellfish

Protozoa are _____ - celled ________ that lack a ____ ____.

single, eukaryotes, cell, wall

There are two cell forms of protozoa, what are they?

1) Trophozoite 2) Cyst

A __________ is a protozoan’s metabolically active (feeding-form) life cycle; they may divide asexually through mitotic division.

trophozoite

Other cells can form _____ that is a zombie form of the cell that can withstand harsh conditions (i.e. dehydration, lack of nutrients, etc.) and when times get better they can regerminate back to the trophozoite state.

cyst

All protozoans have a _________ stage, and only some have a ____ stage.

trophozoite, cyst

ALL protozoa reproduce ________ while some may not reproduce ________.

asexually, sexually

Classification of Protozoans is based on their method of ___________.

locomotion

What are the THREE forms of locomotion in Protozoans?

1) Pseudopods 2) Flagella 3) Cilia 4) Non-motile

______________ move using flagella; some will in cyst while some will not; many parasitic species

Mastigophora

____________ move using pseudopodia (false feet)

Sarcodina

____________ moves using cilia that wave back and forth propelling cells through their environment.

Ciliophora

____________ are non-motile protozoa and are obligate parasites.

Apicomplexa