Cell Transport

Front

What is the term for a membrane that allows some substances to pass through while blocking others?

Back

Selectively permeable

Front

In passive transport, molecules move from an area of ______ concentration to an area of _____ concentration.

Back

higher, lower

Front

What is the process called when a cell surrounds a particle and uses energy to bring it inside?

Back

Engulfing

Front

What is the process called when water moves into or out of a cell?

Back

Osmosis

Front

What do transport proteins do in a cell?

Back

Use energy to move materials from low to high concentration

Front

What is the difference between passive and active transport?

Back

Passive transport does not require energy, while active transport requires energy.

Front

What is diffusion?

Back

The movement of molecules from an area of higher concentration to an area of lower concentration.

Front

What role do aquaporins play in cell transport?

Back

Aquaporins are channel proteins that facilitate the transport of water across cell membranes.

Front

What is the significance of the concentration gradient in transport processes?

Back

The concentration gradient drives the movement of molecules during diffusion and osmosis.

Front

What is endocytosis?

Back

A process by which cells engulf substances to bring them into the cell.