Cell Transport

Front

What is active transport?

Back

Active transport is the movement of particles from an area of lower concentration to an area of higher concentration, requiring energy.

Front

What is passive transport?

Back

Passive transport is the movement of particles from an area of higher concentration to an area of lower concentration, occurring without the use of energy.

Front

What is a selectively permeable membrane?

Back

A selectively permeable membrane allows some substances to pass through while blocking others, regulating what enters and leaves the cell.

Front

Which process is NOT an example of passive transport?

Back

Endocytosis is not an example of passive transport; it requires energy.

Front

What is osmosis?

Back

Osmosis is the diffusion of water molecules across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What is diffusion?

Back

Diffusion is the movement of particles from an area of higher concentration to an area of lower concentration until equilibrium is reached.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport that uses transport proteins to help move substances across a membrane.

Front

What is endocytosis?

Back

Endocytosis is the process by which cells engulf substances from their environment, requiring energy.

Front

What is exocytosis?

Back

Exocytosis is the process by which cells expel materials in vesicles, requiring energy.

Front

What role do transport proteins play in cell transport?

Back

Transport proteins assist in the movement of substances across the cell membrane, especially for larger or polar molecules.