Chapter 11 Questions

1. What are the three stages of cell signaling?

2. Describe the yeast mating process? What two signals are involved? How does yeast mating relate to the three stages?

3. What is the difference between paracrine and synaptic signaling in animals?

4. What are the three major types of receptors found in cells?

5. What is the function of signal transduction? Give an example

6. How does cyclic AMP function is the cell?

7. Describe how epinephrine stimulates glycogen breakdown?

8. Describe how cholera toxin works?

9. What are protein kinases and how do the function in signal transduction?

10. Explain how two cells with different scaffolding proteins could behave differently in response to the same signal molecule?

11. How do signals become terminated?