Cell Transport

Front

What is osmosis?

Back

Osmosis is the diffusion of water across a selectively permeable membrane.

Front

What is exocytosis?

Back

Exocytosis is a process for removing large quantities of toxins and waste from the cell.

Front

What does it mean when a solution is isotonic?

Back

A solution is isotonic when the concentration of solutes on both sides of a membrane is the same.

Front

Is active transport a process that moves molecules from low concentration to high concentration?

Back

True, active transport allows a cell to move molecules from an area of low concentration to an area of high concentration.

Front

What is a selectively permeable membrane?

Back

A selectively permeable membrane allows some things to enter and leave cells while keeping other things out.

Front

What is diffusion?

Back

Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration.

Front

What is the difference between passive and active transport?

Back

Passive transport does not require energy, while active transport requires energy to move molecules against their concentration gradient.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process of transporting molecules across a membrane with the help of transport proteins.

Front

What role do transport proteins play in cell transport?

Back

Transport proteins help move substances across the cell membrane, either passively or actively.

Front

What is endocytosis?

Back

Endocytosis is the process by which cells take in substances by engulfing them in a membrane.