Cell Transport

Front

What does the prefix 'hyper' mean?

Back

It means 'higher' than normal.

Front

What is the primary function of the cell membrane?

Back

It regulates what enters and leaves a cell.

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 an isotonic solution?

Back

A solution where water moves in and out of the cell equally, keeping the shape the same.

Front

Define osmosis.

Back

The movement of water across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What is diffusion?

Back

The movement of molecules from an area of higher concentration to an area of lower concentration.

Front

What is the role of transport proteins in cell membranes?

Back

They facilitate the movement of substances across the cell membrane.

Front

What is active transport?

Back

The movement of molecules against their concentration gradient, requiring energy.

Front

What is passive transport?

Back

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