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Material Type: Exam; Professor: Turrens; Class: Biochemistry II-Metabolism; Subject: Biomedical Sciences; University: University of South Alabama; Term: Unknown 1989;
Typology: Exams
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BMD 322 Name............................................. EXAM #1-1 2-1-
A. Covalent modification of specific enzymes B. Allostery C. Formation of multi-enzymatic complexes D. Regulation of transcription of specific genes E. Reversible binding and release of prosthetic groups to the active site
A. Around the intracellular concentration of the substrate B. Around the intracellular concentration of the enzyme C. Far below the intracellular concentration of the substrate D. Far below the intracellular concentration of the enzyme E. There is no relationship between intracellular substrate concentration and Km value
A. Oxidoreductases B. Transferases C. Hydrolases D. Lyases E. Isomerases
A. Are part of the active site B. Remain tightly bound to an enzyme. C. Are recycled/reused by other enzymes D. Are inorganic ions E. Are continuously oxidized as a source of energy
A. Coenzymes B. Cofactors C. Activators D. Metabolite cofactors E. Repressors
A. Oxidoreductases B. Transferases C. Hydrolases D. Lyases E. Isomerases
A. A B. B complex C. C D. D E. E
A. The farthest chiral carbon from the carbonyl group B. The carbonyl group after it is converted into a hemiacetal C. The last carbon in the chain D. A term used in sugar chemistry to define any chiral carbon E. The carbon that determines whether a sugar is D- or L-
A. NAD B. NADP C. FAD D. FMN E. Coenzyme Q
A. Cytochrome a B. Cytochrome b C. Cytochrome c D. All of the above E. None of the above
A. Dehydrogenases B. Aminotransferases (Transaminases) C. Decarboxylases D. Carboxylases E. None of the above
A. Chitin B. Glycogen C. Maltose D. Amylose
A. A 1 B. A 2 C. C Figure D. D E. None of the above
A. Gangliosides contain phosphate B. Only cerebrosides contain sphingosine C. Gangliosides contain branched polysaccharides D. Gangliosides usually contain a single galactosamine E. Cerebrosides contain phosphate
A. Only lipids B. Only proteins C. About 60 % proteins and 40 % lipids D. About 90% lipids E. About 90% proteins
A. The membrane becomes thinner B. There is less rotation around -C-C- bonds C. Lateral diffusion increases D. A and B are correct E. A and C are correct
A. Serine B. Inositol C. Cholesterol D. Choline E. Ethanolamine
A. The lipid composition in both sides of the bilayer is usually different B. Lipids are free to move across the membrane C. The lateral diffusion of many membrane proteins is not restricted D. Integral protein are located across the membrane. E. Membrane glycoproteins face the inner side of the cell membrane
ESSAYS:
A. Phosphatidyl inositol B. Phospholipase C C. Ca + D. Protein kinase C E. cAMP
A. Hexokinase B. Glucokinase C. PFK- D. PFK- E. Pyruvate kinase
A. Fructose 1,6-bisphosphate B. Fructose 2,6-bisphosphate C. UDPG D. Maltose E. Fructose 1 phosphate
A. Reoxidize NADH from glycolysis B. Have fun C. Make ATP in the process D. Eliminate lactic acid E. Reduce NAD for energy formation
A. Inhibits PFK- B. Stimulates glycogen phosphorylase C. Inhibits glycogen synthase D. Inhibits pyruvate dehydrogenase E. Inhibits pyruvate kinase
A. Pyruvate kinase B. Phosphoglycerate kinase C. Succinyl CoA synthetase D. PFK- E. All of them catalyze substrate level phosphorylation.
A. cAMP B. UDPG C. Free glucose D. Fructose-1-P E. None of the above
A. Pyruvate dehydrogenase B. Glyceraldehyde-3-phosphate dehydrogenase C. Lactate dehydrogenase D. Isocitrate dehydrogenase E. α-ketoglutarate dehydrogenase
A. 2 B. 4. C. 7 D. 9. E. 12
A. PFK- B. pyruvate kinase C. Glyceraldehyde-3-phosphate dehydrogenase D. Pyruvate dehydrogenase E. Isocitrate dehydrogenase
A. Niacin (needed for NAD) B. Pyridoxal phosphate C. Riboflavin D. Thiamine pyrophosphate (TPP) E. pantothenic acid (CoA)
A. E 1 B. E 2 C. E 3 D. Kinase
ESSAYS
Glycolysis in the liver
glycogen synthesis in the muscle
glycogen synthesis in the liver
glycogen degradation in the muscle
glycogen degradation in the liver
glucose concentration in plasma
BMD 322 Name............................................. EXAM #3-1 3-30-
A. Acetoacetate B. Pyruvate C. Oxaloacetate D. Glycerol-P E. Malate
A. Pyruvate carboxylase B. Pyruvate kinase C. Phosphoenol-pyruvate carboxykinase D. A and B are correct E. A and C are correct
A. Activates PFK- B. Activates fructose 1,6 bisphosphatase C. Increases the intracellular concentration of fructose 2,6 bisphosphate D. Activates glucose-6-phosphatase E. Is inhibited by cAMP
A. 1 B. 2 C. 3 D. 4 E. 6
A. Phosphorylation of glucose to G-6-P B. Formation of fructose 1,6 bisphosphate C. Substrate level phosphorylation of ADP from 1,3-bisphosphoglycerate D. Substrate level phosphorylation of ADP from phosphoenol pyruvate E. No exceptions. All these steps are irreversible
A. NADH dehydrogenase B. Succinate dehydrogenase
A. Proton pumping stops B. NADH oxidation C. ATP formation D. Krebs cycle E. All of the above
A. 10 B. 20 C. 27 D. 30 E. 32
A. Co-transports H+^ bound to ADP B. Takes negative charges from the matrix, at the expense of ∆ψ C. Requires Pi D. Utilizes the Fo component of Complex V E. Is a flavoprotein
A. To recognize LDL receptors B. To recognize receptors for chylomicron remnants C. To activate the pancreatic lipase D. To activate LPL (lipoprotein lipase) E. To carry free fatty acids
A. Chylomicrons B. VLDL C. LDL D. IDL E. HDL
A. VLDL > Chylomicrons > IDL > LDL B. Chylomicrons > VLDL > IDL > LDL C. IDL > Chylomicrons > VLDL > LDL D. VLDL > IDL >LDL > Chylomicrons E. Chylomicrons > LDL> IDL > VLDL
A. Gluconeogenesis B. Energy is only provided by β-oxidation C. Accumulation of citrate D. Protein kinase A activation E. Increased cAMP
A. ATP B. GTP C. Succinyl CoA D. Free CoA E. All of the above
A. Transports CoA B. Transports acyl-CoA C. Transports acyl groups D. Transports acetyl CoA E. Transports malate
A. 2 B. 4 C. 8 D. 14 E. 28
A. Pancreatic lipase B. Lipoprotein lipase C. Pancreatic phospholipase A 2 D. None of the above E. All of the above
TRUE/FALSE
BMD 322 Name............................................. FINAL EXAM - Version 1 5-4-
A. The change in enthalpy (∆H) must be < 0 B. The change in the entropy of the universe (∆Su ) must be < 0 C. The change in free energy (∆G) must be < 0 D. The equilibrium constant (Keq) must be < 0 E. The change in standard free energy (∆G°=) must be < 0
A. Biotin B. Pyridoxal C. Vitamin D D. Riboflavin E. Niacin
A. Structural B. Bacterial wall C. Energy storage D. Antigens E. Hormones
A. Collagen B. Chitin C. Cellulose D. Hyaluronic acid E. Heparin
A. Cleavage of a peptide bond in peptidoglycans B. Cleavage of a peptide bond in proteoglycans C. Inhibition of an enzyme involved in the synthesis of the bacterial wall D. Hydrolysis of a glycosidic bond E. None of the above
A. Always the first carbon B. The last chiral carbon C. It depends on whether the sugar is a pentose or an hexose D. The carbonyl group E. It depends on whether the sugar is a pyranose or a furanose
A. Glycerol and fatty acids B. Glycerol, fatty acids, phosphate and an alcohol C. Sphingosin D. Cholesterol E. All of the above
A. Frequency of branching B. Types of glycosidic bonds C. Amylopectin does not have α 16 6 glycosidic bonds D. One of them has β-glycosidic bonds E. One of them is a structural polysaccharide
A. Disrupts packing of phospholipids B. Changes the transition phase temperature C. Energy storage D. Hormone precursor E. Precursor of Vitamin D
A. Equal concentrations in both sides of the membrane B. Higher concentration outside the membrane C. Energy spent in the movement of the solute D. Formation of a gradient across the membrane E. All of the above
A. ATP synthase B. Succinyl CoA synthetase (thiokinase) C. Pyruvate kinase D. A and B are correct E. B and C are correct
A. 0 B. 1 C. 2 D. 3 E. 4
A. GTP B. ATP C. GTP and a decarboxylation D. ATP and a decarboxylation E. A H+^ gradient
A. NADPH B. Acetyl CoA C. FADH 2 D. A molecule of acyl CoA which is two carbons shorter E. All of the above are correct
A. Stimulates glycolysis B. Inhibits carnitine-acyl transferase I C. Is a ketone body D. Is a precursor in cholesterol synthesis E. Is decarboxylated to acetyl CoA during fatty acid synthesis
A. Malate dehydrogenase B. Glycerol-3-P dehydrogenase C. Fatty acyl CoA dehydrogenase complex D. Succinate dehydrogenase E. NADH-dehydrogenase
A. PFK- B. Pyruvate kinase C. Pyruvate dehydrogenase D. Glycogen synthase E. Malonyl CoA synthetase
A. Glycogen synthase B. Protein phosphatase- C. PFK- D. PFK- E. None of the above
A. It has receptors in adipose tissue B. Stimulates tyrosine kinase C. Causes its receptor to self-phosphorylate D. Increases the expression of GLUT4 in muscle E. Stimulates the release of free fatty acid
A. Cannot be allosterically modulated B. Involve oxidations C. Consume ATP D. Consume oxygen E. Are not subjected to hormonal control
A. Glycogen phosphorylase B. Glycerol kinase C. Malonyl CoA synthetase D. Glucokinase E. Glutaminase
A. Precursor in the synthesis of fatty acids B. Precursor in the synthesis of cholesterol C. Precursor in the synthesis of ketone bodies D. Inhibitor of PFK- E. Carrier of mitochondrial acetyl CoA to the cytoplasm
A. GTP B. ATP C. CTP D. A decarboxylation E. Hydrolysis of CoA
A. Gluconeogenic B. Essential C. Aromatic D. Branched E. None of the above