Cell Transport Vocab

Front

What is active transport?

Back

A process where cells use energy to move materials across a membrane from low to high concentration.

Front

What is passive transport?

Back

A process where substances move across a membrane without the use of energy, typically from high to low concentration.

Front

Define osmosis.

Back

The diffusion of water across a selectively permeable membrane.

Front

What is diffusion?

Back

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

Front

What is facilitated diffusion?

Back

A process where substances move across a membrane with the help of transport proteins, without using energy.

Front

What is the difference between active transport and passive transport?

Back

Active transport requires energy to move substances against their concentration gradient, while passive transport does not require energy and moves substances along their concentration gradient.

Front

What happens during osmosis?

Back

Water molecules move from an area of low solute concentration to an area of high solute concentration through a membrane.

Front

What is a selectively permeable membrane?

Back

A membrane that allows certain substances to pass through while blocking others.

Front

What is the role of transport proteins in facilitated diffusion?

Back

Transport proteins help specific molecules cross the cell membrane without using energy.

Front

What is concentration gradient?

Back

The difference in concentration of a substance across a space.

Tags

NGSS.HS-PS1-5