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9 Cards in this Set

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  • Back

Eukaryote

any of the single-celled or multi-cellular organisms whose cell contains a distinct, membrane-bound nucleus.

Prokaryote

any of the group of organisms primarily characterized by the lack

selectively permeable

a feature an a function of the plasma membrane that is essential to maintain homeostasis by regulating the passage of some substances while preventing others from entering the cell

Diffusion

a type of passive transport (spontaneous), therefore, it is a net movement of molecules in and out of the cell across the cell membrane along a concentration gradient (higher concentration to lower concentration).

facilitated diffusion

when molecules move ( diffuse) via special transport proteins found within the cell membrane.

Osmosis

Tendency of water to flow from a hypotonic solution (low concentration of dissolved substances) to hypertonic solution (higher concentration of dissolved substances) across a semipermeable membrane.

Isotonic

Having equal tension or pressure.

Hypertonic

Higher concentration

Hypotonic

Lower concentration