Question 10

(Multiple Choice)

The partition coefficient K,the equilibrium constant for partitioning between oil and water,for butyric acid is about 10-²,and for 1,4-butanediol it is about 10-⁴.You add liposomes containing only water to a solution with an initial concentration of 1 mM butyric acid and 100 mM 1,4-butanediol outside the liposomes.What is the relative rate of diffusion of the two substances into the liposome interior?


A)Butyric acid diffuses into the liposome 100-fold faster than butanediol.
B)The two diffuse into the liposome at equal rates.
C)Butanediol diffuses into the liposome 100-fold faster than butanediol.
D)Not enough information is provided to permit an answer.

Answer