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🧬 Membrane Transport — Diffusion & Pumps (2D)

A 2D cross-section of a cell membrane showing real passive diffusion (Fick's law), saturating facilitated diffusion through carrier proteins, and ATP-driven active transport (Na+/K+ pump stoichiometry) with live concentration graphs.

Biology2DModerate60 FPS📱 Mobile-adapted⇄ 3D version

⚙ Under the hood

Watch real membrane transport in a 2D cross-section: passive diffusion follows Fick's law and equalizes concentration across open channels, facilitated diffusion saturates like a carrier protein under heavy load, and the ATP-driven sodium-potassium pump actively moves solutes against their concentration gradient using a realistic 3-out/2-in stoichiometry. Adjust channel count, starting concentration on each side, and transport mode, then watch the live concentration graphs and net flux.

membrane transportdiffusionfacilitated diffusionactive transportcell biologyATP

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install