SNC 2P Biology Review. Diffusion. Fill in the missing words: Diffusion is the movement of molecules from an area of ___________ concentration to an area of __________ concentration. Osmosis. Osmosis is the movement of ____________ molecules across a ______________. Osmosis.
Work bank: alveoli, capillaries, bronchus, bronchioles, diaphragm, epiglottis, larynx, lung, nasal cavity, pharynx, poor, rich, trachea