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






2. GTP






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






4. Inhibits bacterials dihydrofolate reducatese down thymine






5. Lysine/hydroxylysine and combines to form collagen






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






7. Cylindrical structure composed of helical array of plymerized dimers of alpha and beta tubulin - flagella - cilia - mitotic spindle - grows slowly collapses quickly






8. HS1 - HSB - H2 - H4






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






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






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






12. Greater melting temperature lower fluidity






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






14. Genetic code is conserved throughout evolution






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






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






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






18. 2 H bonds greater GC content greater melting point






19. G1 - S - G2 - Mitosis






20. Alpha 1 antitrypisn






21. Tansport cellular cargo toward opposite ends of microtubule tracks






22. Made from IMP precursor






23. The 5prime end (energy for the bond)






24. Phosphorylation - glycosloation - hyderoxylation






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






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






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






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






29. Hydroxy proline and hydroxylysine






30. Cyclin depndent kinases; consituative and inactive






31. Brings together 2 ends of DNA fragments no requirement for homology






32. Ketone






33. AUG inAUGurates protein synthesis






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






35. Elastase






36. Rampant - Massive - TIny rRNA is most common - then mRNA and then tRNA






37. 9+2 arrangement of microtubules -






38. Binds 50S blocking translocation






39. Cleave terminal regions of procollagen to transform into insoluable tropocolagen






40. Xlinked recessive IV collagen bm - kidney - ear and eye -- nephritis and defness ocular disturbances






41. Type III






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






43. Inhibits ribonucleotide reductase






44. Anti cancer - act on microtubules






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






46. The N to C






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






48. Substituting a pyramidine for a pyrimadine






49. Methionine - which may be removed before translation is completed






50. Base + ribose