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Biochemistry

Instructions:
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. What is the amino acid precuror for creatine - urea and nitric oxide






2. How is vit D stored






3. Which antifungal drugs work on microtubules






4. What happens on the nonoxidative arm of the HMP shunt and What is the key enzyme and cofactor






5. What does a southern blot use as its sample






6. What enzyme becomes essential in PKU






7. What inhibits pyruvate kinase






8. What are the two transgenic strategies in mice






9. What are the characteristics of angelmans syndrome and How does it occur






10. What is the purpose of the HMP shunt






11. What form of amino acids are found in proteins






12. Gene imprinting implies that How many alleles are active at a single locus






13. What does arsenic do and What are th results of poisoning






14. What is the breakdown product of dopamine






15. What is the energy source for translocation






16. What enzyme catalyzes the rxn from pyrvuate to Acetyl - CoA and what inhibits it






17. What happens in a B12 def






18. What are the findings in PKU






19. How is Lesch Neyhan inherited






20. What happens in zinc def






21. What step of uric acid synthesis does xanthine oxidase catalyze






22. What does the TCA cycle produce per 1 acetyl CoA






23. What are the physical findings of fragile x syndrome






24. What enzyme converts phenylalanine to tyrosin






25. What is the origin of replication






26. What neuroanatomical strutures are injured in wernicke - korsakoff






27. Do balanced translocations cause abnl phenotype






28. Where is fructose 1 -6 bisphosphatase found and What does it do






29. What does amino acid catabolsim results in the formation of what?






30. spheroid RBCs due to spectrin or ankyrin defect - hemolytic anemia - inc MHCH - splenectomy is curative






31. What activates the pyruvate dehydrogenase complex






32. What converts limit dextran to glucose






33. An inability to convert orotic acid to UMP would be caused by a deficiency either of which two enzymes

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34. What do def in in enzymes of gluconeogenesis cause






35. trinucleotide repeat for huntingtons






36. Where do you find elastin and What does it do






37. What is the RDE of de novo purine synthesis






38. What ribosomes do prokaryotes have






39. In eukaryotes - What does RNA poly I make






40. What is incomplete penetrence and give an example






41. What is pseudohypertrophy in the calf a result of - and What are the cardiac manifestations






42. What does hormone sensitive lipase do






43. What enzyme degrades a small amount of glycogen in lysosomes






44. cardiomegaly - systemic findings leading to early death - dz and enzyme

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45. What collagen type is most frequently affected in ehlers danlos and What are common complications






46. Which cells are rich in smooth ER






47. What are the names and sources of the two types of vit D found in nature






48. What are pyrimidines made from






49. What lab value can distinguish orotic aciduria from ornithine transcarbamoylase def?






50. What drugs can cause folate def