Midterm Solutions 5

5 kpa s ml ml q2 s

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Unformatted text preview: 99 mol in each compartment. Hence: 180 g Mannose 0.099 mol × = 17.982 g of Mannose 1 mol B. If the effective resistance to flow across the membrane is 83.5 kPa- s/mL, what is the flow rate of water across the membrane during steady state (in mL/s)? (10) ΔP Solution: Remember that flow rate as a function of resistance is given by Q = . You R were provided the osmotic pressure gradient (i.e. pressure difference) in part A. The resistance is also provided. Hence, solving for flow: ΔP 167 kPa Q= = R 83.5 kPa-s mL mL Q=2 s QUESTION 2 Consider a newly discovered microorganism and the transport of hypothetical ions A+, B2+, C- , D- . The table below lists the intracellular and extracellular concentration of each ion as well as each ion’s relative conductance. The temperature is 37°C. (20 total) A. Calculate the values of the equilibrium potential for A+ and B2+ (in mV) (10): Solution: To calculate equilibrium potentials for indivi...
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