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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. The 3 prime hydroxyl of the nascent chain is the target






2. Responsible for the accuracy of amino acid selection






3. 1P blocked by chloramphenicaol and macrolide






4. Commonly results in dramatic decrease in amount of gene transcribed






5. Faulty collagen synthesis causing 1) hyperextensible skin 2) tendency to bleed 3) hypermobile joints






6. Hydroxy proline and hydroxylysine






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






8. Activated by GTP hydrolosis initiation factors help assembel the 40 S ribosomal subunites with the initiatior tRNA and are released whent he mRNA and the ribosomal subunit assemple with the complex






9. Promoter - enhancer - promoter - TATA- transcription initiation site - coding region (including exons and introns) and then the AATAAA






10. Anit helminth - act on microtubules






11. Ketone






12. MRNA






13. Inhibits dihydrofolate reductase down thymine






14. Neurons






15. Asymmetric fluid bilayer - contains - cholesterol - phospholipids - sphingoplipids - glycolipids - and protiends






16. 2 H bonds greater GC content greater melting point






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






18. 1 RNA polymerase (multisubunite complex) makes all 3 kinds of RNA






19. Anterograde to microtubule






20. Base+ribose+phosphate linked by a phosphodiester bond






21. Microtubule polymerization defect resulting in lowered phagocytosis. results in recurrent pyogenic infections - partial albinism and peripheral neuropathy






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






23. AD and AR- associated iwth joint dislocation - berry aneurysms - organ rupture






24. Inhibits thymidylate synthase down thymine






25. Remain in G0 regenerate from stem cells






26. Site where negative regulators bind






27. Substituting a purine for a pyrimdine or vice versa






28. Inhibits the atpase which increases intracellular sodium which increases intracellular calcium increases cardiaccontractility






29. Microvilli - muscle contraction - cytokinesis - adhering juntions






30. Neuroglia






31. Made from IMP precursor






32. Odd 30S plus 50 S=70S






33. Hn RNA






34. VItamin C






35. Cleave terminal regions of procollagen to transform into insoluable tropocolagen






36. Condensed - transciptionally inactive HC- Highly condensed






37. Never go to Go divide rapidly with short G1 bone marrow - gut epithelium - skin - hair follicles






38. Bind 50S blocking translocation






39. Site of dteroid synthesis and detoxification of druigs and poisons (liver hepatocytes and steroid horomore adrenal cortex)






40. Codes for formyl methionine (f - Met)






41. Blocks denovo purine synthesis






42. Uracil






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






44. RNA polymerase I makes rRNA - RNA pol II makes mRNA - RNA pol III makes tRNA






45. Methionine - which may be removed before translation is completed






46. 9+2 arrangement of microtubules -






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






48. 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)






49. A site - incoming aminoacyl tRNA - Psite accomodates growing Peptide - E site holds EmplytRNA as it exits






50. The 5prime end (energy for the bond)