Oxygen,carbon dioxide,and glucose move across capillary walls by

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Oxygen, carbon dioxide, and glucose move across capillary walls by diffusion, which is the movement of substances from an area of higher concentration to an area of lower concentration. Osmosis is the movement of water molecules across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration. Filtration requires pressure to force fluids and solutes through a selectively permeable membrane. Active transport requires energy to move substances against their concentration gradient. Pinocytosis is the process by which cells engulf fluids or solutes.

Oxygen,carbon Dioxide,and Glucose Move Across Capillary Walls by