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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 does amino acid catabolsim results in the formation of what?






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






3. What 3 steps in RNA processing occur after transcription

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4. What is the longest time of RNA and shortest






5. What does a kinase do






6. What tissues have only aldose reductase






7. What inhibits pyruvate kinase






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






9. 90% of ADPKD cases are due to a mutation In what gene






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






11. What does cytokeratin stain for






12. What is proteasomal degredation






13. What drugs can cause folate def






14. I g fat = ? Kcal






15. What does hartnups disease cause






16. What is axonemal dynein






17. What makes up a nucleoside






18. What co - factors are required for the pyruvated dehydrogenase complex






19. What causes Down syndrome






20. decreases In what substances can cause PKU






21. What clotting factors require vit K






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






23. What creates the musty body odor in PKU






24. What is DNA cloning and How do you do it?






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






26. What is a nonsense mutation






27. characterize mitochondrial inheritance






28. What enzyme adds Cl - to the H202 to makes bleach






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






30. Which carbon bears the triphosphate and the energy source for bond formation

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31. What are the findings in PKU






32. What two pathways is carbomoyl phosphate involved in - and what enzyme deficiency leads to a build of carbamoyl phosphate leading to what element in pyrimidine synthesis






33. cell signaling defect of fibroblast growth factor (FGF) receptor 3 - results in dwarfism - short limbs - head/trunk nl size - associated with advanced paternal age






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






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






36. What is a silent mutation






37. What is the most abundant protein in the body






38. How does ethanol induce hypoglycemia






39. What are the teratogenic effects of vit A and What test must be ordered before starting a woman on isotreitinoin for severe acne






40. What is the TX for hyper ammonemia






41. What are the products for glycolysis






42. What two rxns in in glycolysis require ATP






43. What converts NE to epi






44. What is maternal PKU






45. In which direction is protein synthesized






46. What is the limiting reagent in EtOH metabolism






47. What does apoB100 do






48. What residues are hydroxylated in step 2 of collagen synthesis - and What does this require






49. What tissue samples are used for karyotyping






50. What is the origin of replication