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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. Enter G1 from G0 when stimulated Hepatocytes/lymphocytes






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






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






4. Methyl THYmine has a meTHYl






5. Same aa often base change in 3rd position of codon






6. Inhibits by binding to the potassium side






7. Cylindrical structure composed of helical array of plymerized dimers of alpha and beta tubulin - flagella - cilia - mitotic spindle - grows slowly collapses quickly






8. Makes an RNA primer on which DNA polymerase II can initiate replication






9. 4 high enrgy bonds






10. Exocytose procollagen into extracellylar sace






11. Seals






12. 1 RNA polymerase (multisubunite complex) makes all 3 kinds of RNA






13. Y shaped region along DNA template where leading and lagging strands are syntehsized






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






15. 9+2 arrangement of microtubules -






16. Base + ribose






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






18. Completed protein is released from ribosme through simple hydrolosis and dissociates






19. 75-90 nucleotides - 2ary structure cloverleaf form anticodon end is opposite 3 prime aminoacyl end






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






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






22. Prevents stranges from reannealing






23. UGA - UAG - UAA






24. Type III






25. Odd 30S plus 50 S=70S






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






27. Elastase






28. Each codon specifies only 1 amino acid






29. Hn RNA






30. 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






31. No proofreading function but can initiate chains. RNA poymerase II opens DNA at promoter site






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






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






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






35. Inhibits 50S peptidyl transferase






36. Specific glycosylases recognize and remove damaged bases - AP endonuclease cuts DNA at pyrimidne site - empty sugar is removed and the gap is filled and resealed






37. You glyucosolate hte pro - alpha chain lysine resudens and form procollagen (triple helix of alpha chains)






38. Introns stay In the nucleus whereas EXons EXit and are EXpressed






39. Cilia - glagella - mitotic spindle - neurons - centrioles






40. CCA AT 3 PRIME END






41. 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)






42. 1P (blocked by tetracycline)






43. Specific endonucleases release the oligonucleotide containing damaged bases. DNA polymerase and logase fill and resealt eh gap






44. Hydroxy proline and hydroxylysine






45. ATP






46. Substituting a pyramidine for a pyrimadine






47. Unmethylated - newly synthesized string is recognized - mismatched nucleotides are removed and the gap is filled and resealed






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






49. Negatively charged DNA loops twice around histone octamers create a nucloesome bead.






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