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






2. Condensed - transciptionally inactive HC- Highly condensed






3. Methyl THYmine has a meTHYl






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






5. Cyclin depndent kinases; consituative and inactive






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






7. Site where negative regulators bind






8. P53 and RB normally inhibit g1 to S progression






9. Neurons - skeletal - and cardiac muscle - RBCs






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






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






12. Splicing out of introns






13. Greater melting temperature lower fluidity






14. 2 H bonds greater GC content greater melting point






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






16. Promoter - enhancer - promoter - TATA- transcription initiation site - coding region (including exons and introns) and then the AATAAA






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






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






19. Elastase






20. Antifungal - act on microtubules






21. The N to C






22. H1






23. Uracil






24. Genetic code is conserved throughout evolution






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






26. Exocytose procollagen into extracellylar sace






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






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






29. Phosphorylation - glycosloation - hyderoxylation






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






31. 3 sodium out for 2 potassium in (nout - kin)takes 1 atp and the machine is phosphorylated during the machine cycle






32. Inhibits 50S peptidyl transferase






33. VItamin C






34. Inhibit formation of the initation complex and cause misreading of mRNA






35. Binds 50S blocking translocation






36. Poly adenylation






37. Anti cancer - act on microtubules






38. Made from IMP precursor






39. Antigout - acts on mts






40. 75-90 nucleotides - 2ary structure cloverleaf form anticodon end is opposite 3 prime aminoacyl end






41. Anterograde to microtubule






42. Inhibits ribonucleotide reductase






43. GTP






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






45. Prevents stranges from reannealing






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






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






48. Immotile cilia due to a dyenin arm defect. Results in male nad female inferticility (sperm immotile) - bronchiectasis - and recurrent sinusisits - associated with situs inversus






49. Base + ribose






50. Retrograde to microtubules