Passive Transport

Front

What is Passive Transport?

Back

The movement of molecules across a cell membrane without the use of energy.

Front

How does the cell membrane assist in maintaining homeostasis?

Back

By allowing molecules to move into and out of the cell as needed.

Front

What is Selective Permeability?

Back

The ability of the cell membrane to allow some things to pass through while preventing others.

Front

What happens when the concentration of water is equal inside and outside a cell?

Back

The cell is in a state of Equilibrium.

Front

Why can water molecules enter a cell but not sugar molecules?

Back

The holes of the semi-permeable membrane are too small to let sugar molecules through.

Front

What is Osmosis?

Back

The movement of water molecules across a semi-permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is Diffusion?

Back

The movement of molecules from an area of high concentration to an area of low concentration.

Front

What is a Semi-Permeable Membrane?

Back

A membrane that allows certain molecules to pass through while blocking others.

Front

What is Equilibrium in terms of cell transport?

Back

A state where the concentration of substances is equal inside and outside the cell.

Front

What role do transport proteins play in passive transport?

Back

They help facilitate the movement of specific molecules across the cell membrane.