# Chapter 12 - Physical Properties of Solutions - Questions & Problems: 12.138

#### Work Step by Step

We know that the polar groups of valinomyein bind to $K^+$ ions and its non-polar $CH_3$ groups dissolve in the non-polar. As a result, $K^+$ ions transport across the membrane into the cell.

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.