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






2. HS1 - HSB - H2 - H4






3. ATP






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






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






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






7. Condensed - transciptionally inactive HC- Highly condensed






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






9. Inhibit DNA gyrase (specific prokaryotic topoisomerase)






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






11. Proline - glycine






12. 9+2 arrangement of microtubules -






13. Change resulting in early stop codon






14. Remain in G0 regenerate from stem cells






15. ATP- AMP (2 phosphoanhydride bonds)






16. H1 string






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






18. Unwinds DNA template at replication fork






19. ATP ase that links peripheral 9 doublets and causes bending of cilium by differential sliding of doublets






20. Alpha 1 antitrypisn






21. Ribonucleotide reductase






22. 3 H bonds






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






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






25. Made from orogate precuror with PRPP added later






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






27. GTP






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






29. Lysine/hydroxylysine and combines to form collagen






30. Aminoacyl - tRNA binds to A site 2) peptidyltransferase catalyzes peptide bond formation transfers growing polypeptie to amino acid in A site 3) ribosome advances 3 nucleotides toward the 3 prime end of RNA moving peptiydyl RNA to P site






31. The 3 prime end






32. Be So Totatally Cool Read Books (bOne - CarTWOlage - Threeticular - Type IV under the floor)






33. Type III






34. Does not






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






36. 5 prime to 3 prime






37. One codon AUG






38. Antigout - acts on mts






39. Inhibits ribonucleotide reductase






40. Anterograde to microtubule






41. Cyclin depndent kinases; consituative and inactive






42. 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






43. Same aa often base change in 3rd position of codon






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






45. Genetic code is conserved throughout evolution






46. Epithelial cells






47. UGA - UAG - UAA






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






49. Codes for formyl methionine (f - Met)






50. Each codon specifies only 1 amino acid