AP Biology Pre-Discussion Questions: Communication 4- Neurons

Instructions:

Topic Presentation:

Textbook Reading:

Principles of Life:

OpenStax Biology:

Biozone Pages:

Supplementary Resources:

Crashcourse Biology Videos:

Crashcourse Anatomy & Physiology Videos:

Videos by Paul Andersen:

Questions to answer:

Things you should make sure you understand:

Instructions:  

Topic Presentation:  

click here

Textbook Reading:

Principles of Life:

OpenStax Biology:

Biozone Pages:

Volume 2:

Supplementary Resources:

Crashcourse Biology Videos:

The Nervous System - CrashCourse Biology #26

Crashcourse Anatomy & Physiology Videos:

The material in this video is addressed by Videos 8 - 10 on the CrashCourse Anatomy & Physiology Playlist.

Videos by Paul Andersen:

The Nervous System


Questions to answer:

  1. Why are neurons necessary for animal systems, and why are they only found in animal systems?
  2. Explain why each of the following aspects of neuron structure is important to neuron function:
  1. many inputs, one output
  2. unidirectional flow of nervous signals
  3. polarized membrane
  4. “all or nothing” binary nervous signalling system
  5. myelin sheath
  1. Diagram each phase of an action potential, and explain what is happening at the neuronal membrane during each phase (specifically explain which channels in the membrane are open/closed during each phase, and the direction of ion movement accross the membrane).
  2. How is a nervous signal transmitted from one neuron to the next?
  3. Why is the synapse a particularly good target for drugs and toxins?
  4. Describe the function of acetylcholinesterase, and the effect to the body if that function is inhibited.
  5. Research the drug prozac and explain its mode of action on neurons in the brain.

Things you should make sure you understand:

(feel free to ask questions about them in class)