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Apologia Biology
Apologia Biology Module 3
Question | Answer |
---|---|
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 |