LEARNING OBJECTIVES Describe how solutes cross cell membranes Explain how charge size and solubility affect solute movement across cell membranes Contrast how transporters, pumps channels work Describe how ion channels are gated Describe how epithelial transport worksLEARNING OBJECTIVES • Describe how solutes cross cell membranes • Explain how charge, size, and solubility affect solute movement across cell membranes • Contrast how transporters, pumps & channels work • Describe how ion channels are gated • Describe how epithelial transport works