Countercurrent Exchange Simulation
Oxygen and CO₂ exchange in fish gills
→ Water Flow →
← Blood Flow ←
Simulation Controls
Flow Rates
5
5
Initial Concentrations
90%
20%
2
15
O₂ Molecules
CO₂ Molecules
Water Flow
Blood Flow
Current Exchange
O₂ transferred: 0 molecules
CO₂ transferred: 0 molecules
Water O₂: 90% → 80%
Blood O₂: 20% → 85%
Water CO₂: 2 → 5
Blood CO₂: 15 → 8
Efficiency: 0%