CH 369 exam3s05 - Multiple Choice 1 a b c d Glucose is stored in the body as starch cellulose glycogen glucocorticoid 2 What molecule is used to

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Multiple Choice 1. Glucose is stored in the body as: a. starch b. cellulose c. glycogen d. glucocorticoid 2. What molecule is used to mark proteins for degradation? a. ubiquinone b. ubiquitin c. ubisemiquinone d. ubiquinol 3. This enzyme is present only in the liver; has a higher Km than hexokinase; and breaks down glucose after meals. a. glucokinase b. glycogenase c. glycosylase d. glucose-6-phosphatase 4. Which metabolic pathway is paired correctly with its location in the cell or body? a. glycolysis - cytosol b. citric acid - cytosol c. oxidative phosphorylation - golgi d. anaerobic glycolysis - cardiac muscle 5. Which two enzymes are involved in substrate level phosphorylation? a. phosphoglycerate kinase and glyceraldehyde-3-phosphate dehydrogenase b. phosphophenol pyruvate kinase and phosphoglycerate kinase c. glucose-6-phosphate dehydrogenase and phosphoglycerate kinase d. glucose-6-phosphatase and glyceraldehyde-3-phosphate dehydrogenase 6. This organ secretes amylase which breaks down starches? a. stomach b. pancreas c. gallbladder d. kidneys 7. The order of compounds and intermediates found in the citric acid cycle is as follows: a. Iso- Citrate Citrate α -Ketoglutarate Fumarate Malate Oxaloacetate b. Citrate iso- Citrate Oxaloacetate α -Ketoglutarate Malate Fumarate c. Citrate iso -Citrate α -Ketoglutarate Fumarate Malate Oxaloacetate d. Citrate iso- Citrate α -Ketoglutarate Malate Fumarate Oxaloacetate e. Iso -Citrate Citrate α -Ketoglutarate Malate Oxaloacetate Fumarate 8. The following enzyme is the only membrane-bound enzyme in the citric acid cycle. a. Aconitase b. Isocitrate Dehydrogenase c. Succinate Dehydrogenase d. Malate Dehydrogenase e. α -Ketoglutarate Dehydrogenase complex 9. During anaerobic metabolism in red blood cells, the carbons of glucose end up in:
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a. CO 2 b. Ethanol c. Lactic acid d. Both CO 2 and ethanol 10. Glycogen is broken down to ______________, then converted to ________________, and subsequently dephosphorylated in order to __________________________. a. G6P ; G1P ; enter glycolysis b. G1P ; G6P ; enter glycolysis c. G6P ; G1P ; maintain blood glucose levels d. G1P ; G6P ; maintain blood glucose levels e. none of the options are correct 11. Biotin is involved in which type of reaction? a. acetylation b. carboxylation c. reduction d. phosphorylation e. dephosphorylation 12. In the conversion of pyruvate to acetyl-CoA, one molecule of _________ is produced. a. ATP b. NADH c. GTP d. QH 2 e. none of these 13. Organisms that require only CO 2 , N 2 , H 2 and S 2 to survive are most specifically referred to as a. autotrophs b. heterotrophs c. chemoautotrophs d. photoautotrophs e. none of the above 14. Which of the following nucleotides is associated with NADH? a.
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This note was uploaded on 03/30/2010 for the course CH 369 taught by Professor Kbrowning during the Spring '07 term at University of Texas at Austin.

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CH 369 exam3s05 - Multiple Choice 1 a b c d Glucose is stored in the body as starch cellulose glycogen glucocorticoid 2 What molecule is used to

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