Final exam review questions

Final exam review - These are some final exam questions from Spring 2006 The Fall 2006 Final will not be all multiple choice 1 Components of

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
These are some final exam questions from Spring 2006. The Fall 2006 Final will not be all multiple choice. 1. Components of G-protein signaling pathways might include all of the following except: A. Second messenger B. Protein that binds and hydrolyzes ATP C. Ion channel D. Enzyme E. Hydrophobic signaling molecule F. All of the above are found in G protein pathways 2. A Gs protein, when active: A. has GDP bound to the α subunit E. has GTP bound to the α subunit B. has GTP bound to the β subunit F. has GDP bound to the β subunit C. has ATP bound to the α subunit G. has ADP bound to the β subunit D. has ATP bound to the β subunit H. has ADP bound to the α subunit 3. Nitric oxide (NO) A. binds to a cell surface NO receptor B. Activates guanylyl cyclase C. Activates a path that leads to the formation of cGMP D. leads to the relaxation and expansion of blood vessels E. Statements A-D are true F. All statements A-D are true except one statement is false 4. Put the following events in the correct order: 1. G protein linked receptor is activated 2. Phospholipase C is activated 3. Calcium activates protein kinase C 4. PIP2 is cleaved 5. Gq α subunit dissociates from the βγ complex A. 1, 5, 2, 4, 3 B. 1, 5, 2, 3, 4 C. 5, 1, 2, 4, 3 D. 3, 2, 1, 5, 4 E. 5, 1, 2, 3, 4 5. All of the following require Ca++ EXCEPT: A. cadherin binding to cells B. activation of protein kinase C C. calmodulin activity D. exocytosis of acetylcholine E. all of the above require Ca++ 6. If you became infected with cholera, all of the following might happen EXCEPT: A. profuse watery diarrhea B. increased cAMP levels C. Chemical modification of the Gs α subunit of a monomeric G protein D. Increased adenylyl cyclase activity E. All of the above would happen 7. G protein receptor Kinase: A. phosphorylates arrestin B. phosphorylates a G protein C. dephosphorylates a G protein coupled receptor D. activity leads to the desensitization of arrestin E. dephosphorylates arrestin F. None of the above are true 1
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
8. Which of the following proteins would be not function properly if the associated GEF was mutant/non-functional? A. Sar-1 B. Phosphodiesterase C. Ran D. Ras E. They would all function properly 9. The growth factor Superchick stimulates proliferation of cultured chicken cells. The receptor that binds Superchick is a receptor tyrosine kinase, and many tumor cell lines have mutations in the gene that encodes this receptor. Which of the following types of mutations would be expected to induce uncontrolled cell proliferation? A. A mutation that prevents localization of the receptor to the plasma membrane. B. A mutation that prevents dimerization of the receptor. C. A mutation that destroys the kinase activity of the receptor. D.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/17/2008 for the course BICD 110 taught by Professor Mel during the Fall '06 term at UCSD.

Page1 / 11

Final exam review - These are some final exam questions from Spring 2006 The Fall 2006 Final will not be all multiple choice 1 Components of

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online