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science Ch. 3

QuestionAnswer
Pseudopod a temporar6y foot like extension of a cell used for locomotion or engulfing food
nucleus the region of 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
chloroplasts an organelle containing chlorophyll for photosynthesis
chlorophyll a pigment necesarry for photosynthesis
eyespot a light sensitive region in certain protozoa
symoiosis 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
plankton tiny organisms that float in the water
zooplankton tiny floating organisms that are either small animals or protozoa
phytoplankton tiny floating phoyosynthetic organisms promarily algae
thalus the body of a plant like organism that is not divided into leaves roots or s tems
cellulose a substance 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 holfasts to anchor itself to an object
Created by: kbtarheelgirl
 

 



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