Denise, a first year graduate student, is getting ready to begin a lab rotation with Dr. Hudson, an expert on the nodes of Ranvier. What should Denise know about the nodes of Ranvier before beginning her lab rotation?
a. Action potentials occur only at the nodes of Ranvier in unmyelinated axons.
b. Action potentials occur only at the nodes of Ranvier in myelinated axons.
c. Action potentials skip over the nodes of Ranvier in unmyelinated axons.
d. Action potentials skip over the nodes of Ranvier in myelinated axons.
Question 2
A squid axon is large enough to be visible to the naked eye, while a human axon can only be viewed with a microscopic. Compared with an action potential for a human axon, the size of an action potential for a squid axon will be ____.
a. the same
b. smaller
c. larger
d. smaller or larger depending on the length of the axon
The phosphorus cycle. Numbers are 1012 g P or fluxes as 1012 g P per year (data from Schlesinger 199
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