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In: Anatomy and Physiology

1) Describe passive transport. 2) Define concentration gradient, electrical gradient, and electrochemical gradient. 3) What factors...

1) Describe passive transport.
2) Define concentration gradient, electrical gradient, and electrochemical gradient. 3) What factors play a role in the rate of diffusion?
4) Explain the difference between simple diffusion and facilitated diffusion.
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 active transport?
9) What is the mechanism for glucose transport across the intestinal epithelium?
10) Define the relationship between osmotic pressure and osmosis.
11) What type of transport occurs through aquaporins? Where are aquaporins found? 12) How does active transport help to maintain concentration gradients?

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