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Final-key2007 - CH369 Final Exam Spring 2007 1 Glucose is...

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CH369 Final Exam – Spring 2007 1. Glucose is broken down in active muscle cells. It is produced again through gluconeogenesis in the liver. What intermediate metabolite is transported through the blood from the muscle cells to the liver cells? a. pyruvate b. acetyl CoA c. lactate d. oxaloacetate e. α -ketoglutarate 2. What is the difference between the enzymes hexokinase and glucokinase? a. They function in different metabolic pathways. b. They phosphorylate different intermediates. c. They function in different cell types. d. They function in different organelles. Credit was given for both. e. They exhibit different kinetics. 3. Phosphorylation of glycogen phosphorylase directly results in the 4. The process of RNA being converted to DNA is 5. Thymine differs from uracil and cytisine by
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6. What would be the adverse effect on DNA replication if a cell lacked proper telomerase function? a. Okazaki fragments would not be connected together. b. DNA strands would shorten with each round of replication. c. RNA primers would not be degraded in the newly synthesized DNA strands. d. The two strands of template DNA would keep joining back together before replication could occur. e. RNA primers would not be formed. 7. Semi-conservative replication means that 8. The anti-parallel nature of double-stranded DNA means that
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