4. Now let's say the device contains a honeycomb-shaped network of channels, as shown in the diagram. Each straight segment of the network is 1 cm in length (0.1 mm * 0.1 mm cross-section). The left and right ends of the network are exposed to the oxygenated and deoxygenated solutions, respectively. A) Find the mass transport resistance of the entire network. B) Estimate the steady-state O2 concentration at the location indicated by the arrow. 4. Now let's say the device contains a honeycomb-shaped network of channels, as shown in the diagram. Each straight segment of the network is 1 cm in length (0.1 mm * 0.1 mm cross-section). The left and right ends of the network are exposed to the oxygenated and deoxygenated solutions, respectively. A) Find the mass transport resistance of the entire network. B) Estimate the steady-state O2 concentration at the location indicated by the arrow