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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. What causes maple syrup urine disease and What does it lead to...






2. For eukaryotes - Where does replication begin?






3. Why enzyme breaks down elastin and what enzyme inhibits it






4. What substances induce phosphofructokinase






5. Of the four possible fates for pyruvate - which one is a transition from glycolysis to TCA cycle






6. What happens in the first stage of collagen synthesis - and Where does it happen






7. What is disulfiram used for






8. Formed and degradation of VLDL - delivers TGs and cholesterol to liver where they are degraded to LDL






9. What can excess vit B3 cause






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






11. Which anti breast cancer drugs work on micortubules






12. What are the blood glucose levels maintained by for days 1-3






13. characterize mitochondrial inheritance






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






15. CF - is AR deletion In what gene On what chromosome resulting in a deletion inf what?






16. what disease can cause pellagra






17. What does a defective Cl channel do






18. Which cells are rich in smooth ER






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






20. What is the activated carrier for aldehyddes






21. What substances are uncouling agents






22. What test is used for B12 def






23. What does the ELISA test for






24. What are the function of vit C






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






26. Milder form of type I with nl blood lactate levels - dz and enzyme






27. What are the irreversible enzymes of gluconeogenesis






28. What is the amino acid precursor for catecholamines






29. What does Alports syndrome cause and why






30. What is the physiologic role of dystrophin






31. What is the defect in cystinuria






32. In which state is FBPase -2 active






33. What is the order of severity for the different types of mutations






34. What does cytokeratin stain for






35. Delivers dietary TGs to peripheral tissues - delivers cholesterol to liver in the form of remnants - mostly depleted of TGs - secreted by intestinal epith cells






36. What is the amino acid precursor for porphyrin and heme






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






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






39. What is heteroplasmy






40. What is the RDE of the HMP shunt






41. How do macrolides and clindamycin work






42. What causes Marfan syndrome






43. What is the breakdown product of epi






44. What drugs can cause folate def






45. What happens in vit K def






46. What is the initial transcript called and What is the capped and tailed transcript called






47. What enzyme def can cause emphysema






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






49. colon becomes covered witih adenomatous polyps after puberty - progresses to colon cancer unless resected






50. What does beta oxidation do and Where does it occur