Requires energy to move substances across the membrane. -Small & large particles.

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Presentation transcript:

Requires energy to move substances across the membrane. -Small & large particles

The energy used by cells.

The movement of small particles from high to low concentration. Does NOT use energy.

A protein that serves as a passage way through the membrane in active transport.

The diffusion of water.

The movement of particles across a membrane withOUT using energy. -Small particles

Bringing large particles into the cell using a vesicle.

A packet of membrane that carries large particles into and out of a cell.

Bringing large particles out of the cell.

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