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Simple diffusion, osmosis, and facilitated diffusion

Active transport

the movment of materials through a cell membrane using energy


the movement of water across a membrane(NO ENERGY, high to low, whater ONLY)


fats that amke up part of the cell membrane.


The ability of a cell to maintain a balance of food, water, and waste within the cell


the process by which a substance is released from the cell through a vesicle that transports the substance to the cell surface and then fuses with the membrane to let the substance out


the process by which a cell membrane surrounds a particle and encloses the particle in a vesicle to bring the particle into the cell

simple diffusion

the process by which molecules move from an area of higher concentration to an area of lower concentration

facilitated diffusion

Requiring no cellular energy , this type of diffusion helps move large molecules across the cell membrane through transport proteins found in the cell membrane

cell membrane

a cell structure that controls which substances can enter or leave the cell

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