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






2. Enter G1 from G0 when stimulated Hepatocytes/lymphocytes






3. ATP- AMP (2 phosphoanhydride bonds)






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






5. Antifungal - act on microtubules






6. Contain the actual genetic information coding for protein






7. Greater melting temperature lower fluidity






8. Does not






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






10. 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






11. Inhibits dihydrofolate reductase down thymine






12. Cyclin depndent kinases; consituative and inactive






13. CUT 1 ring Cut the Py






14. Ketone






15. H1






16. Unwinds DNA template at replication fork






17. Microvilli - muscle contraction - cytokinesis - adhering juntions






18. Each codon specifies only 1 amino acid






19. Type III






20. Change resulting in misreading of all nucleotides downstream - usually resulting in a truncated non functional protien






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






22. Has enough energy to created the peptide bond






23. Attachment of ubiquitin to defective proteinds to tag them for breakdown






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






25. Checkpoints control transition between phases of cell cycle. regulated by cyclins - CDKs and tumor suppressors. Mitosis (shortest phse)






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






27. Proline - glycine






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






29. Bm - kidney - ears and eyes






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






31. Less condensed - transciptionally active=eu truly transcobed






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






33. Methyl THYmine has a meTHYl






34. Nucleotide excision repair - Base Excision repair - Mismath repair






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






36. H1 string






37. AUG inAUGurates protein synthesis






38. Base + ribose






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






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






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






42. Seals






43. UGA - UAG - UAA






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






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






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






47. A malfunction of mismatch repair (MUt L etc..)






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






49. P53 and RB normally inhibit g1 to S progression






50. Exocytose procollagen into extracellylar sace