Cell Transport

Front

What prevents water-soluble substances from passing through the cell membrane?

Back

Hydrophobic Tails

Front

Which transport process requires energy?

Back

Sodium Potassium Pump

Front

What are ways to increase the rate of diffusion?

Back

Increase Temperature, Increase Pressure, Increase Concentration, All of them

Front

What is an example of diffusion in everyday life?

Back

Someone in the class before you forgot to shower.

Front

What is the composition of the plasma membrane?

Back

A Phospholipid Bilayer

Front

Define diffusion.

Back

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

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What is facilitated diffusion?

Back

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

Front

What role do hydrophilic heads play in the cell membrane?

Back

They interact with water and help to form the bilayer structure of the membrane.

Front

What is the function of the sodium-potassium pump?

Back

To transport sodium out of the cell and potassium into the cell against their concentration gradients.