Protist Characteristics Exam Spring 2011

15 terms by dmoss Teacher

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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.

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