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First Aid: Biochemistry Molecular

Instructions:
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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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. AUG inAUGurates protein synthesis






2. 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






3. Tansport cellular cargo toward opposite ends of microtubule tracks






4. Neurons - skeletal - and cardiac muscle - RBCs






5. ATP- AMP (2 phosphoanhydride bonds)






6. Connective tissue






7. P53 and RB normally inhibit g1 to S progression






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






9. Inhibits 50S peptidyl transferase






10. Antigout - acts on mts






11. H1 string






12. Greater melting temperature lower fluidity






13. Has enough energy to created the peptide bond






14. 3 sodium out for 2 potassium in (nout - kin)takes 1 atp and the machine is phosphorylated during the machine cycle






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






16. Does not






17. The 3 prime end






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






19. Prophas - metaphase - anaphase telophase






20. 3 H bonds






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






22. 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






23. Antifungal - act on microtubules






24. Capping on 5 prime end (7 methylguanosine) -






25. Condensed - transciptionally inactive HC- Highly condensed






26. Bm - kidney - ears and eyes






27. Enter G1 from G0 when stimulated Hepatocytes/lymphocytes






28. Non homologous end joining






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






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






31. Cyclin depndent kinases; consituative and inactive






32. Inhibits by binding to the potassium side






33. Phosphorylation - glycosloation - hyderoxylation






34. 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)






35. Inhibits bacterials dihydrofolate reducatese down thymine






36. Anti cancer - act on microtubules






37. Prokaryotic only. Elongates leading strand by adding deoxynucleotides to the 3prime end. Elongates laggin strand. 3 prime to 5 prime exonuclease activity






38. 1P blocked by chloramphenicaol and macrolide






39. 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






40. Made from IMP precursor






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






42. Hn RNA






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






44. 9+2 arrangement of microtubules -






45. DNA And RNA synthesized in the 5-3 direction






46. Each codon specifies only 1 amino acid






47. Prokaryotic only. Degrades RNA primer and fills in the gap with DNA (5 prime to 3 prime exonuclease)






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






49. Proline - glycine






50. 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







Sorry!:) No result found.

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