Cell Transport Review

Front

What is diffusion?

Back

Diffusion is the passive movement of molecules from an area of high concentration to an area of low concentration until equilibrium is reached.

Front

What type of transport is diffusion?

Back

Diffusion is a type of passive transport.

Front

What is passive transport?

Back

Passive transport is the movement of substances across a cell membrane without the use of energy.

Front

What is active transport?

Back

Active transport is the movement of substances against their concentration gradient, requiring energy.

Front

What is osmosis?

Back

Osmosis is the diffusion of water across a semi-permeable membrane.

Front

What type of transport involves protein channels?

Back

Facilitated diffusion involves protein channels to help move substances across the membrane.

Front

What is the concentration gradient?

Back

The concentration gradient is the difference in concentration of a substance between two areas.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport that uses protein channels to help move molecules across the membrane.

Front

What is the role of the cell membrane in transport?

Back

The cell membrane regulates what enters and exits the cell, allowing for selective transport.

Front

What happens during active transport?

Back

During active transport, molecules move from an area of low concentration to an area of high concentration, requiring energy.