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Apologia Biology

Apologia Biology Module 3

QuestionAnswer
Pseudopod A temporary, foot-like extension of a cell, used for locomotion or engulfing food
Nucleus The region of a eukaryotic cell that contains the cell's main DNA
Vacuole A membrane-bounded "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 photsynthesis
Eyespot A light-sensitive region in certain protozoa
Symbiosis A close relationship between two or more species where at least one benefits
Mutualism 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 Hairlike projections that extend from the plasma membrane and are used for locomotion
Spore A reproductive cell with a hard, protective coating
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
Plankton Tiny organisms that float in the water
Created by: sandcroberts