5B Flashcardizz

Front

What is osmosis?

Back

The movement of water from a region of low solute concentration to a region of high solute concentration through a semi-permeable membrane.

Front

What is diffusion?

Back

The process by which molecules move from an area of higher concentration to an area of lower concentration.

Front

What is active transport?

Back

The movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration, requiring energy.

Front

What is endocytosis?

Back

A form of active transport where cells engulf substances from the outside environment.

Front

What is exocytosis?

Back

A form of active transport where cells expel materials to the outside environment.

Front

What is facilitated diffusion?

Back

The process of passive transport of molecules across a cell membrane via specific transmembrane integral proteins.

Front

What is a semi-permeable membrane?

Back

A membrane that allows certain molecules or ions to pass through it by diffusion and occasionally by facilitated diffusion.

Front

What is solute concentration?

Back

The amount of solute present in a given volume of solution.

Front

What happens to a cell in a hypertonic solution?

Back

Water moves out of the cell, causing it to shrink.

Front

What happens to a cell in a hypotonic solution?

Back

Water moves into the cell, causing it to swell and potentially burst.