serotonin [µM] 0.025 transport rate A [dpm/min] 300.0 transport rate B [dpm/min] 10 0.08 920.0 30.0 0.25 2500.0 100.0 0.7 5400.0 350.0 2 8800.0 1100.0 6 9100.0 3000.0 11. Draw a graph (by using Excel or similar), plotting the serotonin concentration against the transport rate under both conditions. 12. What transport rates for each condition would you expect if the experiment was repeated using 12µM [³H] serotonin? Add your estimate into the table above. 13. Examine the plot obtained for condition A; what can you conclude with regards to whether or not the transport of serotonin into these cells requires a protein? Explain your

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