Diffusion and Osmosis REVIEW

Movement across the cell membrane that does not require energy is called [ active / passive ] transport.

The cell membrane is composed of proteins embedded in a [ phospholipid / molecular ] bilayer.

If there is a concentration gradient, substances will move from an area of high concentration to an area of [ equal / low ] concentration.

The cell membrane is [ selectively permeable / impermeable ].

[ Equilibrium / Diffusion ] is the simplest type of passive transport.

The diffusion of water through a selectively permeable membrane is called [ osmosis / diffusion ].

The direction of water movement across the cell membrane depends on the concentration of free water[ molecules / solutions ].

A solution that causes a cell to swell is called a [ hypertonic / hypotonic ] solution.

Organelles that collect excess water inside the cell and force water out are called [ diffusion organelles / contractile vacuoles ]

The process of taking material into the cell by infolding the cell membrane is called [ endocytosis / exocytosis ]