Review Questions – L4: Cell Communication
1. What is a signal transduction pathway?
2. Provide some examples of local signaling.
3. What is the difference between paracrine signaling and synaptic signaling?
4. How do the signaling molecules travel through the body in endocrine signaling?
5. What are the three stages of cell signaling?
6. What is a ligand?
7. What is phosphorylation?
8. What are protein kinases?
9. What is a phosphorylation cascade?
10. What is one way a signal transduction pathway can get turned off or reset?
11. Provide a general example of a cellular response that occurs within the nucleus.
12. Provide a general example of a cellular response that occurs within the cytoplasm.
13. What is the benefit/outcome of signal amplification in a signal transduction pathway?
14. What types of signal molecules bind with intracellular receptors?
15. How can two cells receive the same signal, but produce two different responses?
16. How do yeast grow towards each other?