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






2. Seals






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






4. Remain in G0 regenerate from stem cells






5. Splicing out of introns






6. AD and AR- associated iwth joint dislocation - berry aneurysms - organ rupture






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






8. The N to C






9. H1 string






10. Anterograde to microtubule






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






12. Neurons






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






14. Create a nick in the helix to relieve supercoils created during replication






15. 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






16. Non homologous end joining






17. Change resulting in early stop codon






18. Uracil






19. Substituting a purine for a pyrimdine or vice versa






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






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






22. Read froma fixed starting point as a continous sequenecs of bases






23. Made from orogate precuror with PRPP added later






24. Alpha 1 antitrypisn






25. Ribonucleotide reductase






26. P53 and RB normally inhibit g1 to S progression






27. UGA - UAG - UAA






28. Antigout - acts on mts






29. Neurons - skeletal - and cardiac muscle - RBCs






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






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






32. 2 H bonds greater GC content greater melting point






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






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






35. 1 RNA polymerase (multisubunite complex) makes all 3 kinds of RNA






36. CUT 1 ring Cut the Py






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






38. Has enough energy to created the peptide bond






39. RNA polymerase I makes rRNA - RNA pol II makes mRNA - RNA pol III makes tRNA






40. Tansport cellular cargo toward opposite ends of microtubule tracks






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






42. Trimming removal of n or c terminal propeptides from zymogens to generate mature proteinds






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






44. Less condensed - transciptionally active=eu truly transcobed






45. Anti breast cancer - acts on mts






46. VItamin C






47. Exocytose procollagen into extracellylar sace






48. Anit helminth - act on microtubules






49. ATP






50. 5 prime to 3 prime