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Biology Module 3

Kingdom Protista

TermDefinition
Pseudopod A temporary, foot-like extension of a cell, used for locomotion or engulfing food.
Nucleus The region of a eukaryotic cell which contains the cell’s main DNA.
Vacuole A membrane-bound "sac" within a cell.
Ectoplasm The thin, watery cytoplasm near the plasma membrane of some cells.
Endoplasm The dense cytoplasm found in the interior of many cells
Flagellate A protozoan that propels itself with a flagellum.
Pellicle A firm, flexible coating outside the plasma membrane.
Chloroplast An organelle containing chlorophyll for photosynthesis.
Chlorophyll A pigment necessary for photosynthesis.
Eyespot A light-sensitive region in certain protozoa.
Symbiosis A relationship between two or more species where at least one benefits.
Mutalism A relationship between two or more organisms of different species where all benefit from the association.
Commensalism A relationship between two organisms of different species where one benefits and the other is neither harmed nor benefited.
Parasitism A relationship between two organisms of different species where one benefits and the other is harmed.
Cilia Hair-like projections that extend from the plasma membrane and are used for locomotion.
Spore A reproductive cell with a hard, protective coating.
Plankton Tiny organisms that float in the water.
Zooplankton Tiny floating organisms that are either small animals or protozoa.
Phytoplankton .Tiny floating photosynthetic organisms, primarily algae.
Thallus The body of a plant-like organism that is not divided into leaves, roots, or stems.
Cellulose A substance (made of sugars) that is common in the cell walls of many organisms.
Holdfast A special structure used by an organism to anchor itself.
Sessile Colony A colony that uses holdfasts to anchor itself to an object.
Created by: vernahale
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