Passive Transport Review

Front

What is the term for a cell that allows some substances to pass through while blocking others?

Back

Selectively permeable

Front

What is osmosis?

Back

The movement of water across a membrane.

Front

What type of molecules does osmosis involve?

Back

Water molecules.

Front

Describe osmosis in terms of concentration gradients.

Back

Osmosis is the diffusion of water molecules through a semi-permeable membrane from an area of high concentration to an area of low concentration.

Front

What is equilibrium in the context of cell biology?

Back

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

Front

What is the difference between permeable and impermeable membranes?

Back

Permeable membranes allow all substances to pass through, while impermeable membranes do not allow any substances to pass.

Front

What is a semi-permeable membrane?

Back

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

Front

What happens to a cell in a hypertonic solution?

Back

The cell loses water and may shrink.

Front

What happens to a cell in a hypotonic solution?

Back

The cell gains water and may swell or burst.

Front

What is diffusion?

Back

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