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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. Capping on 5 prime end (7 methylguanosine) -






2. Microvilli - muscle contraction - cytokinesis - adhering juntions






3. Inhibits ribonucleotide reductase






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






5. Made from orogate precuror with PRPP added later






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






7. Cyclin depndent kinases; consituative and inactive






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






9. Connective tissue






10. Uracil






11. 1P (blocked by tetracycline)






12. CCA AT 3 PRIME END






13. ATP






14. Inhibits dihydrofolate reductase down thymine






15. Tansport cellular cargo toward opposite ends of microtubule tracks






16. Prevents stranges from reannealing






17. 5 prime to 3 prime






18. Codes for formyl methionine (f - Met)






19. Type III






20. 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






21. Does not






22. Remain in G0 regenerate from stem cells






23. VItamin C






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






25. Inhibits thymidylate synthase down thymine






26. Made from IMP precursor






27. MRNA






28. 75-90 nucleotides - 2ary structure cloverleaf form anticodon end is opposite 3 prime aminoacyl end






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






30. Anti cancer - act on microtubules






31. Alpha 1 antitrypisn






32. Seals






33. Inhibits 50S peptidyl transferase






34. 3 H bonds






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






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






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






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






39. Anterograde to microtubule






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






41. CUT 1 ring Cut the Py






42. Proline - glycine






43. 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






44. Intervening noncoding segments of DNA






45. Blocks denovo purine synthesis






46. Enter G1 from G0 when stimulated Hepatocytes/lymphocytes






47. Site where negative regulators bind






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






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






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