Diffusion requires the use of energy from a cell.

Diffusion only happens in cells.

Active transport requires __________ in order to work.

Cholesterol provides ________________for the membrane.

________ and ___________ pass easily through the phospholipid bilayer.

Proteins create various channels to assist molecules to pass through the membrane.

Cells need ____________to enter the cell in order to make ATP.

____________are transport proteins specifically designed for water molecules.

Cell membranes are __________________which means they control what enters and leaves the cell.