Cell Transport Review RED

Front

What is the main function of the cell membrane?

Back

To control the movement of substances in and out of the cell.

Front

What is diffusion?

Back

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

Front

What structure is labeled A in a cell diagram?

Back

Protein.

Front

Which type of transport requires energy?

Back

Active Transport.

Front

In which direction does a red molecule diffuse based on the concentration gradient?

Back

Out of the cell.

Front

What is osmosis?

Back

The movement of water across a semipermeable membrane.

Front

What is passive transport?

Back

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

Front

What is the role of proteins in the cell membrane?

Back

Proteins help transport substances across the membrane and act as receptors.

Front

What is a concentration gradient?

Back

A difference in the concentration of a substance across a space.

Front

What is facilitated diffusion?

Back

The process of passive transport of molecules across a cell membrane via specific transmembrane integral proteins.