BIOL 1407
Electrical Signals 1 Assignment
Action Potentials
1.
Draw and label each stage of an action potential.
Further Explorations
Electric Fishes
Go here:
http://nelson.beckman.uiuc.edu/electric_fish.html
Read the article called “What IS an electric fish?”
Then click on the link to Electrolocation on the left side of the page. Read this article,
also. Then answer the following questions.
1.
2.
3.
4.
5.
6.
7.
What is the difference between an electric fish and other fishes?
Differentiate between electrogenic and electroreceptive.
True or False? All electroreceptive fishes are electric fishes.
Explain how electric fishes produce their electric fields.
Explain what EOD means.
What are the differences beween a strongly electric fish and a weakly electric
fish?
Discuss electrolocation, including the three steps involved.
A Trip Down Memory Lane: Enjoy!
Go here: http://video.google.com/videoplay?docid=6471199287935705259
See how far modern biology has come……………..