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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 is axonemal dynein






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






3. I g fat = ? Kcal






4. How do glucagon/epi lead to glycogenolysis






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






6. what findings are associated with marfans






7. What is the purpose of the HMP shunt






8. What does amino acid catabolsim results in the formation of what?






9. What do neurofilaments stain for






10. What is the prevalence of an X- linked recessive disease in males and in females






11. What are the mRNA stop codons






12. Which type of chromatin is less condensed - transcriptionally active - sterically accesible






13. Type I collagen






14. How does OTC def present






15. In which direction is protein synthesized






16. Which part of the DNA binds RNA polymerase and multiple other TFs upstream from gene locus






17. Which direction does dynein go






18. facial lesions - hypopigmented 'ash leaf spots -' cortical and retinal hamartomas - seizures - mental retardation - renal cysts - renal angiomyolipomas - cardiac rhabdomyomas - inc risk of astrocytomas






19. What is a silent mutation






20. What is the RDE of fatty acid synthesis






21. What happens in folate def






22. What apolipoproteins are on chylomicrons






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






24. What are the fat soluble vitamins and What does their absorption depend on...






25. What does cytokeratin stain for






26. How do permanent cells grow and regenerate and What are examples of permanent cells






27. What is the limiting reagent in EtOH metabolism






28. Give an example of a mitochondrial inherited disease






29. What are the 3 AR forms of homocystinuria






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






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






32. What is the energy source after day 3 of starvation






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






34. How do tetracyclines work






35. depression - progressive dementia - choreiform movements - caudate atrophy and dec levels of GABA and ACH in the brain






36. What are the priorities for the body in fasting and starvation






37. What does lipoprotein lipase do






38. characterize x linked dominant






39. What do def in in enzymes of gluconeogenesis cause






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






41. What does the mutation in the gene cause in protein synthesis






42. Where is EtOH dehydrogenase located






43. What is the RDE of TCA cycle






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






45. What substance inside the cell reduces glutatione






46. What are the symptoms of vit A excess






47. How do stable (quiescent) cells grow and regenerate and What are examples






48. What stretch of DNA that alters gene expression by binding of transcription factors






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






50. Where is glucose 6 phosphatase found and What does it do