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First Aid: Biochemistry Molecular

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. Inhibits 50S peptidyl transferase






2. 1) primary transcript combines with snRNPs and other proteins to form spliceosome 2) lariat shaped intermediate is generated 3) Lariat is removed and released to precisely join 2 exons






3. Neurons - skeletal - and cardiac muscle - RBCs






4. A malfunction of mismatch repair (MUt L etc..)






5. Anti cancer - act on microtubules






6. Exocytose procollagen into extracellylar sace






7. Epithelial cells






8. Inhibits thymidylate synthase down thymine






9. ATP ase that links peripheral 9 doublets and causes bending of cilium by differential sliding of doublets






10. 2 H bonds greater GC content greater melting point






11. Inhibits by binding to the potassium side






12. H1 string






13. 1P (blocked by tetracycline)






14. Codes for formyl methionine (f - Met)






15. Unattached to any membrane; site of cytosolic and organeller prtoeins






16. Brings together 2 ends of DNA fragments no requirement for homology






17. Trimming removal of n or c terminal propeptides from zymogens to generate mature proteinds






18. Type III






19. UGA - UAG - UAA






20. Site where RNA polymerase and multiple other transciption factors bind to DNA upstream from gene locus (AT rich upstream sequence with TATA and CAAT boxes)






21. Substituting a purine for a pyrimdine or vice versa






22. Responsible for the accuracy of amino acid selection






23. Blocks denovo purine synthesis






24. Genetic bone disorder (brittle bone disease) type 1 colalgen - fractures (during birth) 2) Blue sclerae 3) hearing loss 4) dental imperfections 1:10000 may be confused with child abuse






25. VItamin C






26. Scrutinizes aa before and after it binds to tRNA. If incorrect bond is hydrolyzed.






27. 3 sodium out for 2 potassium in (nout - kin)takes 1 atp and the machine is phosphorylated during the machine cycle






28. Ribonucleotide reductase






29. Attachment of ubiquitin to defective proteinds to tag them for breakdown






30. CCA AT 3 PRIME END






31. MRNA






32. Stretch of DNA that alters gene expression by binding transcription factors






33. Inhbits RNA pol II (found in death cap mushrooms)






34. Odd 30S plus 50 S=70S






35. In the nucleus after transcitpion and only processed RNA is transporte out of the nucleus






36. 75-90 nucleotides - 2ary structure cloverleaf form anticodon end is opposite 3 prime aminoacyl end






37. Antifungal - act on microtubules






38. Prophas - metaphase - anaphase telophase






39. (A - G) 2 rings Pure As Gold






40. Neurons






41. Be So Totatally Cool Read Books (bOne - CarTWOlage - Threeticular - Type IV under the floor)






42. Ketone






43. Poly adenylation






44. ATP






45. Methyl THYmine has a meTHYl






46. Inhibit formation of the initation complex and cause misreading of mRNA






47. Vimentin - desmin - cytockeratin - glial fibrillary acid proteins - neurofilaments






48. Even 40S 60S =80S






49. Bind 50S blocking translocation






50. Site of secretory protiens (mucus secreting goblet cells and antibody secreting cells)