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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. In a marathon Where does energy come from






2. What shape does the RNA generate during splicing and why?






3. peripheral neuropathy - developmental delay - optic atrophy - glopoid cells






4. What does GFAP stain for






5. FAP is due to deletion On what gene On what chromosome






6. elevated LDL due to defective or absent LDL receptor - heterozygotes have cholesterol ~300 - homozygotes ~700






7. What does apoCII do






8. How do tetracyclines work






9. What does a western blot use for its sample






10. congenital deficiency of homogentisic acid oxidase in the degradative pathway of tyrosine to fumarate leading to dark connective tissue - brown pigmented sclera - urine turns black on standing - dz and worst complication






11. Leysh - Nyhan syndrome is a defect in which enzyme and What are the biochemical results






12. What tissues have only aldose reductase






13. What two enzymes are involved in EtOH metabolism






14. developmental delay - gargoylism - airway obstruction - corneal clouding - hepatosplenomegaly






15. What are the complications/signs of familial hypercholesterolemia






16. in a 100 meter sprint Where does energy come from






17. Describe robertsonian translocation






18. What can excess vit B3 cause






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






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






21. What is a missense mutation






22. What do B- complex vitamin deficiencies often result in






23. hepatosplenomegaly - aseptic necrosis of femur - bone crisis - MACS that look like crumpled tissue paper

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






25. What 3 syndromes are associated with vit B1 def






26. What is linkage disequilibrium






27. What does commaless - nonoverlapping genetic code refer to...






28. What can vit B3 be used to treat






29. How doe NADH electrons from glycolysis and the TCA cycle enter the mitochondiria






30. What are the clinical features of I cell diesase






31. In which state is FBPase -2 active






32. trinucleotide repeat fo myotonic dystrophy






33. What does CATCH 22 stand for and What causes is...






34. Inhibition of thymidilate synthase and and DHFR lead to decrease In what substance






35. Which enzyme involved in RNA synthesis does not require a template






36. Delivers hepatic cholesterol to peripheral tissues - formed by LPL modification of VLDL in the peripheral tissue - taken up by target cells via RME






37. What are the only purely ketogenic amino acids






38. What is variable expression and What is an example






39. Of the four possible fates for pyruvate - which one can replenish TCA cycle or be used in gluconeogenesis






40. What does a kinase do






41. What substances inhibit phosphofructokinase -1






42. What does the vimentin stain for






43. What does helicase do






44. What does acetyl - CoA become before becoming palmitate






45. What is the activated carrier for phosphoryl






46. The pyruvate dehydorgenase complex serves In what reaction: reactants






47. How many rings do purines have






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






49. How do labile celss grow and regenerate and What are examples






50. telangiectasia - recrrent epistaxis - skin discolorations - AVMs