Biochemie (Fach) / Schriftliche Endprüfung (Lektion)

In dieser Lektion befinden sich 195 Karteikarten

Altfragen

Diese Lektion wurde von Jackie1995 erstellt.

Lektion lernen

zurück  |  weiter 1 / 4

  • 1. The urea is regulated by? A. Acetyl Coa B. Citrate C. Malonyl Coa D. N- acetylglutamate E. Cytoplasmic carbamoylphosphate E. Cytoplasmic carbamoylphosphate
  • 2.Which of the following will not require NADPH+ H+? A. Synthesis of oleic acid B. Synthesis of palmitic acid C. The beta oxidation of fatty acid D. Each of these requires NADPH+ H+ C. The beta oxidation of fatty acid
  • 3.Which of the following is not a dehydrogenase in the TCA cycle? A. Isocitrate dehydrogenase B. Alpha- ketoglutarate dehydrogenase C. Pyruvate dehydrogenase D. Succinate dehydrogenase E. Malate dehydrogenase C. Pyruvate dehydrogenase
  • 4.Alanine transaminase(ALT) transfers an amino group from alanine to? A. Pyruvate B. Alpha – ketoglutarate C. Oxaloacetate D. Methionine E. Carbamoyl phosphate B. Alpha – ketoglutarate
  • 5. Which of the following statements about the reactions of glycolysis is true? A. In glycolysis glucose – 6 – phosphate is split into glyceraldehyde – 3- phosphate and dihydroxyacetone-phosphate B. In glycolysis glucose – 1,6 – biphosphate is split into glyceraldehyde – 3- phosphate and dihydroxyacetone-phosphate C. In glycolysis frutose – 6- phosphate is split into glyceraldehyde – 3- phosphate and dihydroxyacetone-phosphate D. In glycolysis glucose – 6 – phosphate is isomerized to fructose 1,6 – biphosphate B. In glycolysis glucose – 1,6 – biphosphate is split into glyceraldehyde – 3- phosphate and dihydroxyacetone-phosphate
  • 6.This enzymatic reaction takes place in the mitochondria A. 6 – phosphogluconate dehydrogenase B. Pyruvate kinase C. Succinate dehydrogenase D. Glucokinase E. All of these answers are true E. All of these answers are true
  • 7.Contain B- D- glucose A. Starch B. Maltose C. Glycogen D. Cellulose E. Hyaluronic acid D. Cellulose
  • 8. From which molecule can be produced oxaloacetate? A. Malate B. Pyruvate C. Aspartate D. All of answers are false A-C E. All answers A-C are true E. All answers A-C are true
  • 9.Which pathway reaction takes place in the mitochondrion? A. Synthesis of palmitic acid B. Beta – oxidatation of palmitic acid C. Glycolysis D. Glycogenesis E. All of the answers A-D is false B. Beta – oxidatation of palmitic acid
  • 10.Which of the following statements about the generation of ATP in the electron transport chain is true? A. The generation of ATP from ADP coupled to electron transfer occurs by substrate level phosphorylation as in glycolysis B. Electron transport generates a proton gradient across the outer mitochondrial membrane C. ATP synthase in valves are structured outside the inner mitochondrial membrane D. ATP synthase in valves are structures outside the outer mitochondrial membrane C. ATP synthase in valves are structured outside the inner mitochondrial membrane
  • 11.Which enzymatic NADP+ as a cofactor? A. 6 – P – gluconate dehydrogenase B. Lactate dehydrogenase C. Glyceraldehyde – 3- P – dehydrogenase D. Succinate dehydrogenase E. Alle of answers A-D is false A. 6 – P – gluconate dehydrogenase
  • 12. Which of the following statements about the ketone bodies/acetoneacetate and B- hydroxybutyrate is true? A. Muscles produce ketone bodies from fatty acids B. Adipose tissue can produce ketone bodies from its fat stores C. The liver produces acetoacetate and B- hydroxybyturate from fatty acids D. Acetoacetate is metabolized to acetate in peripheral tissue C. The liver produces acetoacetate and B- hydroxybyturate from fatty acids
  • 13. Increased cAMP concentration increases the activity of following enzymes? A. Phosphorylase kinase B. Glycogen phosphorylase C. Hormone sensitive lipase D. All of these answers is false E. All of these answers is true E. All of these answers is true
  • 14. Alpha – ketoglutarate is the end product of the reaction catalyzed by following enzyme? A. Pyruvate carboxylase B. Lactate dehydrogenase C. Pyruvate dehydrogenase D. Glutamate decarboxylase E. None of them E. None of them
  • 15. Start molecule of ketogenesis? A. Propionyl Coa B. Glycerol C. Glutamic acid (glutamate) D. Acetyl Coa D. Acetyl Coa
  • 16. How much energy is produced in the anaerob glycolysis of 1 mol glucose? A. 2 mol ATP B. 3 mol ATP C. 36 mol ATP D. 129 mol ATP E. All of the answers A – D is false A. 2 mol ATP
  • 17. Which of the following enzymes need thiamine pyrophosphate (TPP) as cofactor? A. Lactate dehydrogenase B. L – glutamate dehydrogenase C. Serine decarboxylase D. Pyruvate dehydrogenase E. Pyruvate carboxylase D. Pyruvate dehydrogenase
  • 18. Which of the following molecules contains the most carbon atoms? A. Tyrosine B. Tyramine C. Palmitic acid D. Histidine C. Palmitic acid
  • 19. Start molecule of ketogenesis? A. Leucine B. Glutamic acid C. Propanyl – Coa D. All of them is false E. All of them is true A. Leucine
  • 20. Which pathway reaction takes place in mitochondria? A. Synthesis of palmitic acid B. Beta oxidation of palmitic acid C. Glycolysis D. Synthesis of cholesterol E. None of them B. Beta oxidation of palmitic acid
  • 21. How much energy is produced in the complete oxidation of 2 mol glucose? A. 72 B. 3 C. 36 D. 129 E. None of them A. 72
  • 22.Characteristics of arachidonic acid? A. Omega 6 unsaturated fatty acids, four double bonds, 20 C B. Omega 3, unsaturated fatty acis, three double bonds, 18 C C. Omega 6 unsaturated fatty acids, two double bonds, 18 C D. Omega 3 unsaturated fatty acids, four double bonds, 20 C E. None of them A. Omega 6 unsaturated fatty acids, four double bonds, 20 C
  • 23.Which has not a high energy bond? Glucose – 6 – phosphate 
  • 24. Start molecule of GNG? Pyruvate
  • 25. This enzyme uses NAPD as a cofactor? A. Succinate dehydrogenase B. Lactate dehydrogenase C. Glyceraldehyde – 3 – phosphate dehydrogenase D. 6 – P- gluconate dehydrogenase E. None of them D. 6 – P- gluconate dehydrogenase
  • 26.From which molecule can be produced oxaloacetate A. Pyruvate B. Acetoacetate C. Leucine D. None of them E. All of them A. Pyruvate
  • 27. This molecule can be synthesized from HMG – Coa in a given pathway? A. Acetate B. Acetone C. 3 – acyl-glycerol D. All of them are E. None of them E. None of them
  • 28. Which of the following is a common intermediate in the conversion of gly to glucose? A. Phosphoenolpyruvate B. Fructose – 1,6 – biphosphate C. Malate D. Oxaloacetate E. Pyruvate E. Pyruvate
  • 29. Which enzyme catalyzes reaction where substrates level phosphorylation happens? A. Succinyl CoA synthethase/Pyruvate kinase B. Succinate dehydrogenase C. Acetyl coenzyme carboxylase D. Glutamine synthethase E. None of them A. Succinyl CoA synthethase/Pyruvate kinase
  • 30. Which establishment is not characteristic for the complex of the respiratory chain? A. Collector is FMN B. Hydrogen uptake from any NADH+ H+ C. Contains HEM iron D. Contains proton channel E. None of them C. Contains HEM iron
  • 31. Characteristic of linoleic acid? A. 6 unsaturated fatty acids, two double bonds, 20 C B. 3 unsaturated fatty acids , three double bonds, 18 C C. 6 unsaturated fatty acids, two double bonds, 18 C D. 3 unsaturated fatty acids, three double bonds, 20 C C. 6 unsaturated fatty acids, two double bonds, 18 C
  • 32. In the urine of a healthy cat can be found? A. Urea, uric acid and ammonium ion B. Urea, allantoine, ammonium ion C. Only urea D. Only uric acid E. None of them B. Urea, allantoine, ammonium ion
  • 33. In the urine of a healthy dalmantin dog can be found? A. Urea, uric acid and ammonium ion B. Urea, allantoine, ammonium ion C. Only urea D. Only uric acid E. None of them A. Urea, uric acid and ammonium ion
  • 34. Start molecule of gluconeogenesis? A. Acetoacetate B. Leucine C. Glutathione D. Lactate E. All of them D. Lactate
  • 35. How many energy is produced in the beta oxidation of 1 mol palmitoyl – CoA? A. 129 mol ATP B. 131 mol ATP C. 146 mol ATP D. 148 mol ATP E. None of them B. 131 mol ATP
  • 36. This reaction happens in cytoplasm? A. ATP citrate lyase B. Fatty acyl – coA dehydrogenase C. Succinate dehydrogenase D. HMG – CoA lyase E. Non of them A. ATP citrate lyase
  • 37. Which cycle produced NADPH+ H? Pentose phosphate pathway
  • 38. Primary bile acids? Cholic acid/Chenodeoxycholic acid
  • 39. What is splitting urea in rumen? Bacterial urase
  • 40. Start molecule of oxaloacetic synthesis? Pyruvate
  • 41. Which amino acid produces GABA? Glutamate
  • 42. Where can we NOT find ketosis? Liver
  • 43. Essential amino acid in horse? Lycine
  • 44. Allosteric enzyme? Reversible enzyme inhibition
  • 45. Where is fat produced? Mammary gland/adipose tissue/ liver in some species
  • 46. Energy gain from oxidation from 1 glucose molecule? 36 ATP
  • 47. What amino acid can make pyruvate? Alanine, serine, glycine and cysteine 
  • 48. What amino acid can make glutamic acid? Alanine
  • 49. What is the amine group needed for the transamination of a new amino acid? Glutamic acid
  • 50. Where are transaminases found? Cytoplasm or mitochondria

zurück  |  weiter 1 / 4