478 Discussion Questions — Part E 



transported across membranes surrounding various portions of the kidney 

 tubules? Which ions are believed to be actively transported although the 

 evidence is weak? How could you test to see whether active transport 

 occurs ? 



15. Describe the anatomy of one of the electric eels, emphasizing the 

 structure of the electric organs. Cite numerical values supporting the role 

 of acetylcholine in triggering the discharge of these organs. 



16. Review the theory for peristalsis-like surface type waves traveling along 

 nerve axons. 



17. What is the cable model of an axon ? Describe how this is used to 

 theoretically analyze the conduction of impulses between nodes along a large 

 "myelinated" nerve fiber. 



18. Grundfest and his co-workers injected various ionic solutions into the 

 axoplasm of squid axons. What effect would you predict this to have on the 

 resting potential and on the height of the action potential ? Why ? Were 

 these predictions verified by the experiments ? 



19. Develop in detail the application of information theory to a study of 

 enzyme specificity. 



20. Design a set of experiments in which the language of information theory 

 could be applied to the sense of taste. 



