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13 cards from this deck
Difference in concentration between two areas
Faster diffusion rate
Increases diffusion rate
Changes kinetic energy of particles
Alveoli in lungs, villi in small intestine
Faster diffusion
Smaller molecules diffuse faster
Oxygen and carbon dioxide
Nonpolar molecules (easier than polar molecules)
Large surface area, steep gradient, short distance
Large surface area, thin walls
Carbon dioxide
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