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Biochemistry

Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • 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. How many rings do purines have






2. If two alleles are present - but the active allele is deleted - what happens






3. Type IV collagen






4. What catacholamine step is SAM required for






5. What are bite cells and when do you see them






6. What is the hardy weinberg allele prevalence






7. What substance inside the cells replenishes NADPH






8. What are cyclin - CDK complexes






9. What does DNA poly III do?

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10. What happens in vit D excess






11. What tissue samples are used for karyotyping






12. How does patients present with ADPKD






13. What are the characteristics of prader willi syndrome How does it occur






14. What are the reactants for glycolysis






15. What does a carboxylase do






16. In the chromatin structure - which histones form the octamer - and which ties the nucleosome beads together in a string?






17. How do macrolides and clindamycin work






18. What are the symptoms of vit A excess






19. Eukaryotic and prokaryotic DNA synthesis is blank and involves both blank and blank strands






20. What is variable expression and What is an example






21. What converts limit dextran to glucose






22. delivers hepatic TGs to peripheral tissue - secreted by liver






23. What is the result of vit B5 def






24. Infection with what organism can cause B12 def






25. How many ATP are created by aerobic metobolism of glucose in muslce via what shuttle






26. What causes patau's syndrome and What is it






27. What is the amino acid precuror for creatine - urea and nitric oxide






28. What does vit B3 def result in






29. decreases In what substances can cause PKU






30. What are uncoupling agents






31. What 3 steps in RNA processing occur after transcription

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32. Which antihelminthe drugs work on microtubules






33. What does high cholesterol or long saturated fatty acid content do to the melting temperature and fluidity






34. The golgi apparatus fxns as a distribution center between what organelles in the cell and What does it process






35. What is the defect in fructose intolerance and What does it cause






36. What is NADPH's role inside RBCs






37. What is used to diagnose muscular dystrophies






38. How is orotic aciduria inherited






39. What does aminoacyl tRNA synthetase do the AA before and after it binds to tRNA - and what happens if it's the wrong the match






40. What is the most common urea cycle disorder and What is the mode of inheritance?






41. In a 1000 meter run - Where does energy come from






42. Why can't even chain fatty acids produce new glucose






43. Which step in the de novo purine and pyrimidine synthesis pathway requires just aspartate






44. What does an umabiguous genetic code refer to...






45. What are the function of vit C






46. What causes B12 def






47. What is the composition of urea and where do each part derive from






48. What amino acid makes up most of the octamer






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






50. Wgat substances directly inhibit mitochondrial ATPase - causing an inc in proton gradient - no ATP because pump is stopped