This document contains a complex exercise on the neurotoxins batrachotoxin and curare.

It can be used as practice for an upcoming exam, or it can be used as an exam itself.

 The exercise is tailored to require 90 min of work when done in "one sitting" and in writing.

It includes the solutions and references to the following competencies:

General Competencies:

-        I can purposefully extract information from written sources.

-        I can make (a) fact(s) or circumstance(s) clear by describing the involved elements and pointing out causal correlations between them ( explain).

-        I can draw logical conclusions based on known facts and/or data in order to answer a biological question ( deduce).

-        I can give a judgement that is based on facts and logical conclusions ( evaluate).

-        I can reflect on the importance, limits, and societal effects of biological discoveries and methods.

-        I can form justified hypotheses on scientific questions.

-        I can describe diagrams formally.

-        I can describe, analyze, and interpret the data depicted in a diagram.

-        I can name significant parts of the human nervous system and explain their respective functions.

-        I can describe and compare continuous and saltatory impulse transmission.

-        I can name, describe, and explain processes that maintain resting potential, and I can name, describe, and explain processes that counteract the maintenance of a resting potential.

-        I can describe and explain the influence of neurotoxins on membrane potentials and the transmission of signals on chemical synapses, and I can deduce potential consequences.