Active and Passive Transport

Front

What are the three types of active transport?

Back

Sodium/potassium Pump, Endocytosis, Exocytosis

Front

What happens to a cell placed in distilled water?

Back

It will swell and possibly burst.

Front

What is equilibrium in the context of transport?

Back

When concentrations are balanced between two substances.

Front

What does semi-permeable mean?

Back

Only some things can move through the membrane.

Front

What is the difference between active and passive transport?

Back

Active transport uses ATP (energy) while passive transport does not need energy.

Front

What is osmosis?

Back

The movement of water across a semi-permeable membrane from an area of low solute concentration to an area of high solute concentration.

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

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

Front

What is the sodium/potassium pump?

Back

A type of active transport that moves sodium ions out of the cell and potassium ions into the cell against their concentration gradients.

Front

What is endocytosis?

Back

The process by which cells take in substances by engulfing them in a membrane.