5. If the intracellular concentration of a membrane-permeant substance increased from 10 to 30 millimolar and the extracellular concentration remains at 5 millimolar, the rate of diffusion of that
substance across the plasma membrane will increase by a factor of how much? *
(1 Point)

How can you keep track of variables in a science experiment?

When analyzing tree rings, what do scientists assume a thin ring indicates?

Scientists are conducting a study on the effectiveness of a new drug on memory loss. they are giving some of the test subjects the new drug to find out if it improves their long-term memory. which are possible limitations of this study? check all that apply. a) test subjects may want to participate in additional experiments. b) test subjects may think they should be paid more. c) test subjects may get bored and want to quit early. d) test subjects may have to travel during the experiment. e) test subjects may have full-time jobs. this is multiple choice. you for the !