5. Finally, consider a single-channel microfluidic device in which the channel tapers linearly from a 0.1 mm * 0.1 mm cross-section to a 0.05 mm x 0.05 mm cross-section. The channel is 1 cm in length. The wider end is exposed to the oxygenated solution, while the narrow end is exposed to the deoxygenated water. A) Using a resistor model, calculate the mass transport resistance of the channel. B) Are the fluxes at the two ends the same? If so, what is its value? If not, which end has the higher flux, and what is its value there? C) What is the O2 concentration at the midpoint of the device (i.e., halfway between both ends)? 5. Finally, consider a single-channel microfluidic device in which the channel tapers linearly from a 0.1 mm * 0.1 mm cross-section to a 0.05 mm x 0.05 mm cross-section. The channel is 1 cm in length. The wider end is exposed to the oxygenated solution, while the narrow end is exposed to the deoxygenated water. A) Using a resistor model, calculate the mass transport resistance of the channel. B) Are the fluxes at the two ends the same? If so, what is its value? If not, which end has the higher flux, and what is its value there? C) What is the O2 concentration at the midpoint of the device (i.e., halfway between both ends)