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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. Exocytose procollagen into extracellylar sace






2. Non homologous end joining






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






4. Responsible for the accuracy of amino acid selection






5. Antifungal - act on microtubules






6. The N to C






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






8. Epithelial cells






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






10. Remain in G0 regenerate from stem cells






11. 4 high enrgy bonds






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






13. Substituting a pyramidine for a pyrimadine






14. Ribonucleotide reductase






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






16. Uracil






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






18. 1P blocked by chloramphenicaol and macrolide






19. Hn RNA






20. Bind 50S blocking translocation






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






22. Three amino acids necessary for purine synthesis= glutamine - aspartate and glycine






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






24. Poly adenylation






25. Less condensed - transciptionally active=eu truly transcobed






26. H1 string






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






28. Codes for formyl methionine (f - Met)






29. Contain the actual genetic information coding for protein






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






31. ATP






32. 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






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






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






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






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






37. Inhibits bacterials dihydrofolate reducatese down thymine






38. Hydroxy proline and hydroxylysine






39. CCA AT 3 PRIME END






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






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






42. Seals






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






44. Bm - kidney - ears and eyes






45. Greater melting temperature lower fluidity






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






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






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






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






50. Retrograde to microtubules