# Explain why the rate of transport of potassium ions across a bilayer of dimyristoyl phosphatidyl choline...

###### Question:

explain why the rate of transport of potassium ions across a bilayer of dimyristoyl phosphatidyl choline by valinomycin greatly decrease when the temperatue is gradually reduced from 25 to 15 C whereas the rate of transport of potassium ions by gramicidin D is almost unchanged under similar circumstances?

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