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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. Base + ribose






2. Anit helminth - act on microtubules






3. Exocytose procollagen into extracellylar sace






4. Methyl THYmine has a meTHYl






5. Each codon specifies only 1 amino acid






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






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






8. Lysine/hydroxylysine and combines to form collagen






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






10. Anti breast cancer - acts on mts






11. Poly adenylation






12. Site where negative regulators bind






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






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






15. Elastase






16. Seals






17. Introns stay In the nucleus whereas EXons EXit and are EXpressed






18. Particular sequnece in genomre where DNA replication begins. May be single (prokaryotes) or multiple (eukaryotes)






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






20. The 3 prime end






21. Uracil






22. Change resulting in early stop codon






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






24. CUT 1 ring Cut the Py






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






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






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






28. Substituting a pyramidine for a pyrimadine






29. Codes for formyl methionine (f - Met)






30. 3 sodium out for 2 potassium in (nout - kin)takes 1 atp and the machine is phosphorylated during the machine cycle






31. CCA AT 3 PRIME END






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






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






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






35. 1P (blocked by tetracycline)






36. 5 prime to 3 prime






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






38. Inhibits 50S peptidyl transferase






39. Inhibits thymidylate synthase down thymine






40. Alpha 1 antitrypisn






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






42. Muscle






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






44. Condensed - transciptionally inactive HC- Highly condensed






45. Inhibits dihydrofolate reductase down thymine






46. Unattached to any membrane; site of cytosolic and organeller prtoeins






47. UGA - UAG - UAA






48. Epithelial cells






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






50. 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