Cell Membrane & Cell Transport

Front

What happens to water when there is the same amount of solute inside and outside the cell?

Back

Water moves in and out of the cell.

Front

What does it mean when a membrane is described as selectively permeable?

Back

It means some molecules can cross the membrane while others cannot.

Front

What happens to water when there is more solute inside the cell than outside?

Back

Water moves into the cell.

Front

What controls the passage of materials inside and outside of the cell?

Back

The Cell Membrane.

Front

What is the primary function of the plasma membrane?

Back

To regulate what enters and leaves the cell.

Front

What is the structure of the cell membrane primarily made of?

Back

A lipid bilayer.

Front

What role do protein receptors play in the cell membrane?

Back

They help in communication and signaling between the cell and its environment.

Front

What is osmosis?

Back

The movement of water across a selectively permeable membrane.

Front

What is diffusion?

Back

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

Front

What is the difference between active and passive transport?

Back

Active transport requires energy to move substances against their concentration gradient, while passive transport does not.