Cell Vocabulary

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Plasma Membrane (Cell Membrane)

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A boundary between a cell and the surrounding environment, controls the passage of materials into and out of a cell.

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Cytoplasm

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Jelly-like substance within the cell that suspends the organelles

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Cytosol

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The fluid part of the cytoplasm

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Organelle

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Specialized structure that carries out a specific cell function in different parts of the cell at the same time.

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Prokaryotic Cell

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A cell that does not have a nucleus or membrane-bound organelles.

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Cell Wall

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Rigid structure that gives support and protection to plant, fungi, bacteria, and some algae cells.

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Eukaryotic cell

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A cell that has a nucleus and membrane-bound organelles. Examples include plants, animals, fungi, and protists.

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Nucleus

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The central membrane-bound organelle that manages cellular functions and contains DNA.

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Cytoskeleton

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Network of protein filaments that gives the cell its shape and helps the cell move.

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Microtubule

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Long, hollow protein cylinders that form a rigid skeleton and assist in moving substances within the cell