Passive and Active Transport

Front

What is diffusion?

Back

Diffusion is the process where molecules move from an area of high concentration to an area of low concentration.

Front

Which transport requires energy?

Back

Active Transport requires energy.

Front

What is the movement of particles from an area of lower concentration to an area of higher concentration called?

Back

This process is called Active Transport.

Front

What is the diffusion of water across a membrane called?

Back

The diffusion of water across a membrane is called osmosis.

Front

What does passive transport require?

Back

Passive transport requires no energy.

Front

What is osmosis?

Back

Osmosis is the movement of water molecules through a selectively permeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is active transport?

Back

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

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process of passive transport of molecules across a biological membrane via specific transmembrane integral proteins.

Front

What is a concentration gradient?

Back

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

Front

What is the role of the cell membrane in transport?

Back

The cell membrane regulates what enters and exits the cell, facilitating both passive and active transport.