Problem
This problem consists of four questions. Each of your responses is 25 points, and should be at least two paragraphs long, or more, depending upon the depth of the question. Use intext citation and include references.
I. Compare and contrast the signaling pathways for muscle contraction and the perception of light.
II. What are two biochemical assays that are used to study the binding of a ligand to its receptor? Describe in detail and give examples.
III. What signaling pathways are important in the regulation of glucose metabolism? How do they work in concert to ensure blood glucose homeostasis?
IV. Planaria is a model organism used to study regeneration. What are the signaling pathways used for the regeneration of the head and tail in Planaria? What experimental approaches were used to deduce the signaling pathway?