Passive transport

Front

What is Selective Permeability?

Back

The ability of the cell membrane to allow some things to pass through while preventing other things from passing through.

Front

What does it mean for a cell membrane to be selectively permeable?

Back

Cell membranes regulate which substances can enter and exit the cell.

Front

What moves with the concentration gradient?

Back

Diffusion moves from an area of high concentration to an area of low concentration.

Front

Which part of the cell controls the movement of substances?

Back

The cell membrane controls the movement of substances.

Front

What is Passive Transport?

Back

Passive transport is the movement of materials across the cell membrane that does NOT require cell energy.

Front

What is the main difference between Passive Transport and Active Transport?

Back

Passive transport does not require energy, while active transport requires energy to move substances against their concentration gradient.

Front

What is Diffusion?

Back

Diffusion is the movement of molecules from an area of high concentration to an area of low concentration.

Front

What is Osmosis?

Back

Osmosis is the diffusion of water molecules across a selectively permeable membrane.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process of passive transport of molecules across a cell membrane via specific transmembrane integral proteins.

Front

What role do transport proteins play in passive transport?

Back

Transport proteins help move substances across the cell membrane without using energy.