15 - http/www4.ncsu.edu/~knopp/BCH451/e04b3.htm BCH 451...

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BCH 451 Summer 2004 Exam #3 NAME 1. Draw the predominate structures of the following molecules at the pH indicated. Be sure to include all carbon and hydrogen atoms! a. (3) β-D-ribulofuranosyl (2-4) α-D-mannopyranose b. (3) 1-oleyl-2-palmitoleyl phosphatidyl inositol 4,5 bis phosphate c. (3) pGppddUp d. (1) cAMP [Chad] 2. (0.3) In the appropriate structure above, indicate with an arrow the site of cleavage for phospholipase C [Sayuri , Andrea Crystal ] 3. 4. (1) What are the two major [general] cellular effects of signal transduction? 5. (2) List and describe the reasons why polysaccharides favored over monosaccharides for sugar storage? 6. (1) What are the consequences of binding of 2,3- bis phosphoglycerate to hemoglobin? 7. (1) Why is the term “fluid mosaic” used to describe a biological membrane? [David ] 8. (2) Explain why cholesterol broadens the phase transition of membranes without changing the Tm: [Stephen, Charles ] 9. For IP 3 [Thu] a. (0.5) What is its full name? b.
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15 - http/www4.ncsu.edu/~knopp/BCH451/e04b3.htm BCH 451...

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