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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. Cleave terminal regions of procollagen to transform into insoluable tropocolagen






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






3. Poly adenylation






4. Close to - far from or even within (in an intron) the gene whose expression it regulates






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






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






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






8. Exocytose procollagen into extracellylar sace






9. ATP- AMP (2 phosphoanhydride bonds)






10. 1P (blocked by tetracycline)






11. Retrograde to microtubules






12. Inhibits bacterials dihydrofolate reducatese down thymine






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






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






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






16. Bm - kidney - ears and eyes






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






18. H1






19. Accurate base pairing is required only in the first 2 nucleotide positions of an mRNA so codons differing ht e3rd wobble psoition may code for the same tRNA/amino acid code






20. 2 H bonds greater GC content greater melting point






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






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. Anti breast cancer - acts on mts






24. 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






25. Genetic code is conserved throughout evolution






26. 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






27. Intervening noncoding segments of DNA






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






29. 1P blocked by chloramphenicaol and macrolide






30. CCA AT 3 PRIME END






31. Does not






32. Microvilli - muscle contraction - cytokinesis - adhering juntions






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






34. G1 - S - G2 - Mitosis






35. Odd 30S plus 50 S=70S






36. Anit helminth - act on microtubules






37. Codes for formyl methionine (f - Met)






38. Alpha 1 antitrypisn






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






40. Proline - glycine






41. Change resulting in early stop codon






42. Must be both activated and inactivated for cell cycle to progress






43. Inhibits thymidylate synthase down thymine






44. Neuroglia






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






46. Less condensed - transciptionally active=eu truly transcobed






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






48. MRNA






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






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