Cell Membrane and Transport

Front

What is the term for cell membrane transport that occurs without energy?

Back

Passive transport

Front

What happens to a cell placed in an environment with more oxygen outside than inside?

Back

The cell will gain oxygen.

Front

What is the term for when there is an equal number of molecules inside and outside the cell?

Back

Equilibrium

Front

What describes a hypertonic environment?

Back

Too little water in the cell will cause the cell to shrink - the percentage of water is lower outside the cell than inside the cell.

Front

What is the primary function of the plasma membrane?

Back

To regulate what enters and leaves the cell.

Front

What is active transport?

Back

The movement of molecules across a cell membrane using energy.

Front

What is diffusion?

Back

The process by which molecules spread from areas of high concentration to areas of low concentration.

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What is a hypotonic solution?

Back

A solution with a lower concentration of solutes compared to the inside of the cell, causing the cell to swell.

Front

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

Back

To facilitate the movement of substances across the membrane.