Membrane Transport & Ion Channels

MEMBRANE TRANSPORT SIMULATION

▸ Building the phospholipid bilayer…

▸ Inserting ion channels, Na⁺/K⁺ pump, aquaporins

▸ Scattering Na⁺/K⁺/Cl⁻ ions on both sides

▸ Loading ATP — starting the active pump

▸ Calibrating concentration gradient & potential

▸ Ready — Online. ✅

Membrane status

🧫 Concentration gradient

ion gradient · ATP · water flow

Concentration gradient—

ATP used—

Water flow—

Membrane potential—

Transport mode—

Viewing—

Note

The membrane is selectively permeable: ions cross channels PASSIVELY down the gradient (no energy); the Na⁺/K⁺ pump pushes ions AGAINST the gradient so it must burn ATP — this very ion gradient creates the membrane potential (paired with the neuron room).

—

Drag "Concentration gradient" & pick a "Scenario" (hypotonic/hypertonic · Na⁺/K⁺ pump · ATP depleted…) · click a membrane component or concept for details

Your browser has canvas disabled — cannot render the simulation.

Ion concentration on both sides & potential over time outsideinsidepotential