1) Describe passive transport.
2) Define concentration gradient, electrical gradient, andelectrochemical gradient. 3) What factors play a role in the rateof diffusion?
4) Explain the difference between simple diffusion and facilitateddiffusion.
5) Which type of molecules move via facilitated diffusion?
6) Why is active transport necessary?
7) What role does the Na-K pump play in active transport?
8) How is primary active transport different from secondary activetransport?
9) What is the mechanism for glucose transport across theintestinal epithelium?
10) Define the relationship between osmotic pressure andosmosis.
11) What type of transport occurs through aquaporins? Where areaquaporins found? 12) How does active transport help to maintainconcentration gradients?
