Cells Flashcards

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Stem cells

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Undifferentiated cells capable of developing into various specialized cell types.

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Selectively permeable

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A property of cell membranes that allows certain substances to pass through while blocking others.

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Osmosis

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The movement of water molecules through a selectively permeable membrane from a region of lower solute concentration to higher concentration.

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Active transport

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The movement of molecules across a cell membrane requiring energy, typically against a concentration gradient.

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Passive transport

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The movement of molecules across a cell membrane without requiring energy, following the concentration gradient.

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Eukaryotic cell

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A complex cell with a nucleus and membrane-bound organelles, found in plants, animals, fungi, and protists.

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Prokaryotic cell

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A simpler cell without a nucleus or membrane-bound organelles, typically found in bacteria and archaea.

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Animal cell

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A type of eukaryotic cell that makes up animals, lacking a cell wall and chloroplasts but having a nucleus and organelles.

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Plant cell

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A type of eukaryotic cell that makes up plants, characterized by a cell wall, chloroplasts, and a large central vacuole.

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Hypotonic solution

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A solution with a lower concentration of solutes compared to another solution, causing cells to swell.