6. Name and describe three ways in which cells can drive active transport. 7. Describe how the Na +K+ pump work. Why is it important? Do all cells use this same pump for the same function? 8. Name and describe the three ways in which carrier proteins can transport solutes. 9. Describe the Na+ glucose transporter. Describe how glucose is transported from the intestinal lumen to the extracellular fluid in the gut lining. 10. What are ion channels? How are they different from aqueous pores? How are they different from carrier proteins?.