please answer all questions. will rate! 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? 23. What drives vesicular budding? Be prepared to describe the model for vesicular budding of clathrin-coated vesicles. Who are the participants and what role do they play? 24. Describe the model for how vesicles are directed to specific locations within the cell. 25. What are the secretory and endocytic pathways?.