98B_Final08 - Score Bio 98B Final Exam 3/21/08 Name SID...

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Bio 98B Final Exam 3/21/08 Name SID Either full names or abbreviations of enzymes/intermediates are fine. A1). Name the three enzymes that are NOT irreversible between glucose and glyceraldehyde 3-phosphate (G3P) (3 pt). _____________________________ _____________________________ _____________________________ A2). The Mighty Mouse over-expresses the enzyme ________________________________ (1 pt). The product of this enzyme is ________________________________ (1 pt), which appears in both cytoplasm and mitochondria. Draw the structure of this product below (2 pt). Draw chemical structure here. A3). Aldolase goes through an intermediate called the ________________________________(1 word) base. (1 pt). A4). Consider a liver cell stimulated with glucagon. a) How does it affect the rate of glycolysis in these cells? b) How does it affect the level of fatty acid oxidation in these cells? c) What is the effect on glycogen phosphorylase? (Answer a, b and c simply by saying “decrease”, “no change”, or “increase” , 3 pt total) (a)_____________________________ (b)_____________________________ (c)_____________________________ A5). Lance Armstrong is trained to raise his ________________________________ (1 word) (1pt) threshold. This is produced from pyruvate by the enzyme ________________________________ (1 pt) A6). How many net molecules of ATP will one molecule of 2-phosphoglycerrate (2PG) generate upon complete oxidation to CO2 and H2O in the muscle? __________________________ (2 pt) Score (Do not write in here) Total
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Bio 98B Final Exam 3/21/08 Name SID B1). Name the three products of pyruvate dehydrogenase. E2: ____________________________, E3: _____________________________________, E1: ______________________________ (3 pt) B2). Vitamin B3 is ____________________________ (one word), which turns into NAD + . (1pt) B3). Answer “increase” “decrease” or “no change” for the following scenarios (3 pt) a.) lots of ATP to the TCA cycle rate b.) lots of calcium to the PDH rate c.) lots of pyruvate to the rate of isocitrate dehydrogenase
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98B_Final08 - Score Bio 98B Final Exam 3/21/08 Name SID...

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