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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. Even 40S 60S =80S






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






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






4. 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






5. Codes for formyl methionine (f - Met)






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






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






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






9. Anti breast cancer - acts on mts






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






11. Strethchy protein within lungs - large artiers - elastic liaments - vocal cords - ligamenta flava)






12. Different exons can be combined to make nique protiens in different times






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






14. Bind 50S blocking translocation






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






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






17. Inhibits by binding to the potassium side






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






19. Regulatory proteins that control cell cycle events; phase specific; activated CDKs






20. Uracil






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






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






23. Neuroglia






24. Changed aaconservative - new aa is similar in chemical structure






25. Binds 50S blocking translocation






26. RER translation of collagen alpha chains (preprocollagen) usually Gly-X-Y






27. Mutation in nucleotide excision repair Dry skin with melanoma and other cancers






28. One codon AUG






29. Create a nick in the helix to relieve supercoils created during replication






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






31. 2 H bonds greater GC content greater melting point






32. UGA - UAG - UAA






33. Blocks denovo purine synthesis






34. Bind 30S subunit preventing attachment of aminoacyl - tRNA






35. The N to C






36. 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






37. 4 high enrgy bonds






38. Responsible for the accuracy of amino acid selection






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






40. Enter G1 from G0 when stimulated Hepatocytes/lymphocytes






41. Poly adenylation






42. Particular sequnece in genomre where DNA replication begins. May be single (prokaryotes) or multiple (eukaryotes)






43. Made from IMP precursor






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






45. More than 1 codon may code for the same amino acid






46. Connective tissue






47. Aminoacyl - tRNA binds to A site 2) peptidyltransferase catalyzes peptide bond formation transfers growing polypeptie to amino acid in A site 3) ribosome advances 3 nucleotides toward the 3 prime end of RNA moving peptiydyl RNA to P site






48. 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






49. Odd 30S plus 50 S=70S






50. 1P (blocked by tetracycline)