Passive Transport

Front

What is passive transport?

Back

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

Front

What is osmosis?

Back

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

Front

What does 'high concentration area' mean?

Back

An area where particles are tightly packed together.

Front

What regulates what enters and leaves a cell?

Back

Cell Membrane.

Front

What happens to a cell in a hypertonic solution?

Back

Water moves out of the cell, causing it to shrink.

Front

What happens to a cell in a hypotonic solution?

Back

Water moves into the cell, causing it to swell.

Front

What is a semi-permeable membrane?

Back

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

Front

What is diffusion?

Back

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

Front

What is equilibrium in the context of cell transport?

Back

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

Front

What is the role of the cell membrane in passive transport?

Back

It selectively allows substances to enter or exit the cell without energy.