quiz7 key

quiz7 key - activation activates PKA but cAMP is not...

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Quiz 7: Cell Biology Dr. Sarah Rothschild Full Name: _____________________ Honor Pledge (Sign) ______________________ 1. Name the four kinds of cell signaling (2pts). Endocrine Paracrine/ Autocrine Neuronal Contact dependent 2. True or False (circle): The same signal molecule can induce multiple responses depending on the receptor and what it activates. 3. True or False (circle): Viagra works by accelerating the breakdown of cGMP. Viagra inhibits the breakdown of cGMP 4. Which of the following is NOT a kind of cell surface receptor? a. Ion channel coupled receptor b. Enzyme coupled receptor c. GPCR d. PCR e. All of the above are coupled receptors 5. Which of the following is an example of a G protein? a. Gi b. Gd c. Gs d. A and B e. All of the above The answer should be A and C. Everyone got this marked as correct. 6. Adenylyl cyclase converts ___ ATP _________ to ____ cAMP ___________. Some of you wrote cAMP and then PKA. The cAMP created as a result of the adenylyl
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Unformatted text preview: activation activates PKA but cAMP is not converted to PKA. Guanylyl cyclase converts GTP to cGMP. Hydrolysis is converting ATP to ADP. 7. Which of the following is true about Ca+ a. Has a higher concentration inside the cell b. Activates calmodulin and causes a conformational change c. Inhibits CaM-kinases d. Inhibits muscle contraction 8. Put the following components in order for the RTK pathway: MAP Kinase Cascade, RTK, change in cell function, signal molecule, Ras (2 pts) Quiz 7: Cell Biology Dr. Sarah Rothschild Signal RTK Ras MAP Kinase Cascade Change in Cell Funtion Many of you struggled with this. I can almost guarantee some sort of signaling pathway will be on the tests and you wouldn’t be given options then. Make sure you study these....
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This note was uploaded on 11/29/2011 for the course BIO 218 taught by Professor Rothschild during the Spring '11 term at VCU.

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quiz7 key - activation activates PKA but cAMP is not...

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