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






2. cytoskeletal elements associated with cilia - flagella - mitotic spindle - neurones and centrioles






3. How many ATP are produced by anearobic glycolysis per molecule of glucose






4. What regulates whether FBPase -2 or PFK-2 is active






5. bilateral acoustic schwannomas - juvenile cataracts






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






7. What metabolic rxns occur in both the cytoplasm and mitochondria






8. What are covalent alterations






9. deletion of VHL gene on chromosome 3 leading to hemangioblastomas of retina/cerebellum/medulla bilateral RCC - dz and overexpression product






10. What is the RDE of TCA cycle






11. What is the activated carrier for 1 carbon units






12. When does aspartate enter the urea cycle






13. What enzyme converts phenylalanine to tyrosin






14. central and peripheral demyelination with ataxia and dementia






15. What shuttle is involved in fatty acid synthesis and What does it move From where to where






16. What is chediak higashi






17. What amino acid makes up most of the octamer






18. In which structures do you find microtubules






19. Which end of the tRNA is the amino acid bound to...

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






21. How do microtubules grow and collapse






22. What is the most abundant protein in the body






23. What is the target of the 3' hydroxyl attack






24. What does a defective Cl channel do






25. What clotting factors require vit K






26. Pts with albinism are at inc risk For what cancer






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






28. What else can phosphoylate phosphorylase kinase






29. ADPKD is associated with What additional conditions






30. Patients with chronic granulomatous disease are at increased risk of infection From which kind of organisms






31. what disease can cause pellagra






32. What does the addition of mannose -6 phosphate do






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






34. What does SAM do






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






36. What is the activated carrier for electrons






37. How is Lesch Neyhan inherited






38. What does the golgi apparatus do on asparagine






39. Name 5 drugs that interfere with nucleotide synthesis






40. What liberates glucose from glucose 6 P






41. In mismatch repair - which strand is recognized and In what hereditary syndrome is this defective






42. What is the activated carrier for phosphoryl






43. What substances inhibit phosphofructokinase -1






44. What drugs can cause folate def






45. RNA poly can't proofread - but What can it do






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






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






48. What is the RDE of ketogenesis






49. What is locus heterogeneity and give an example






50. What does vit E def cause