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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. Made from orogate precuror with PRPP added later






2. Cyclin depndent kinases; consituative and inactive






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






4. P53 and RB normally inhibit g1 to S progression






5. ATP- AMP (2 phosphoanhydride bonds)






6. In the nucleus after transcitpion and only processed RNA is transporte out of the nucleus






7. 1 RNA polymerase (multisubunite complex) makes all 3 kinds of RNA






8. Greater melting temperature lower fluidity






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






10. Asymmetric fluid bilayer - contains - cholesterol - phospholipids - sphingoplipids - glycolipids - and protiends






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






12. Y shaped region along DNA template where leading and lagging strands are syntehsized






13. Seals






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






15. Contain the actual genetic information coding for protein






16. Connective tissue






17. Has enough energy to created the peptide bond






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






19. GTP






20. Ribonucleotide reductase






21. Enter G1 from G0 when stimulated Hepatocytes/lymphocytes






22. Activated by GTP hydrolosis initiation factors help assembel the 40 S ribosomal subunites with the initiatior tRNA and are released whent he mRNA and the ribosomal subunit assemple with the complex






23. Less condensed - transciptionally active=eu truly transcobed






24. Site where RNA polymerase and multiple other transciption factors bind to DNA upstream from gene locus (AT rich upstream sequence with TATA and CAAT boxes)






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






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






27. Binds 50S blocking translocation






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






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






30. Poly adenylation






31. UGA - UAG - UAA






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






33. Exocytose procollagen into extracellylar sace






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






35. Muscle






36. Remain in G0 regenerate from stem cells






37. 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






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






39. Inhibits bacterials dihydrofolate reducatese down thymine






40. Inhibits dihydrofolate reductase down thymine






41. Inhibits 50S peptidyl transferase






42. Substituting a purine for a pyrimdine or vice versa






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






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






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






46. One codon AUG






47. 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






48. Non homologous end joining






49. Inhibits thymidylate synthase down thymine






50. Intervening noncoding segments of DNA