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15 terms

Protist Characteristics Exam Spring 2011

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Cilia
Short, hairlike projections used for locomotion and capturing food
Flagella
Whip-like cell appendages used for locomotion
Oral groove
The mouth of the paramecium organism where food is taken in
Food vacuole
Small cavity in the cytoplasm of protists that temporaily store and digest foods
Contractile vacuoles
Collects and expels water to control level of water in cell
Pseudopod
Temporary projection of cytoplasm, or a "false foot," used by some protists for feeding or movement
Amemoid movement
Movement by psuedopods like in the amoeba
Nucleus
Structures in the cytoplasm of a cell that controles cell function and reproduction
phagocytosis
Process in which extensions of cytoplasm surround and engulf large particles and take them into the cell
Cell membrane
Thin, flexible barrier around a cell, regulates what enters and leaves the cell
Prokaryote
Unicellular organism lacking a nucleus
Eukaryote
Organism whose cells contain nuclei
Pathogen
An organism that causes disease
Organelle
A tiny cell structure that carries out a specific function within the cell
Protist
Single-celled or simple multicellular eukaryotic organisms.