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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. Odd 30S plus 50 S=70S






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






4. Ribonucleotide reductase






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






6. One codon AUG






7. 75-90 nucleotides - 2ary structure cloverleaf form anticodon end is opposite 3 prime aminoacyl end






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






9. 3 H bonds






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






11. Even 40S 60S =80S






12. CCA AT 3 PRIME END






13. Seals






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






15. Each codon specifies only 1 amino acid






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






17. Connective tissue






18. Close to - far from or even within (in an intron) the gene whose expression it regulates






19. Neurons






20. 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






21. Greater melting temperature lower fluidity






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






23. G1 - S - G2 - Mitosis






24. Condensed - transciptionally inactive HC- Highly condensed






25. Lysine/hydroxylysine and combines to form collagen






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






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






28. Hn RNA






29. Alpha 1 antitrypisn






30. Muscle






31. P53 and RB normally inhibit g1 to S progression






32. Inhibits thymidylate synthase down thymine






33. 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






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






35. Proline - glycine






36. Antifungal - act on microtubules






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






39. AUG inAUGurates protein synthesis






40. Tansport cellular cargo toward opposite ends of microtubule tracks






41. Exocytose procollagen into extracellylar sace






42. Remain in G0 regenerate from stem cells






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






44. Vimentin - desmin - cytockeratin - glial fibrillary acid proteins - neurofilaments






45. The 3 prime end






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






47. MRNA






48. Antigout - acts on mts






49. Responsible for the accuracy of amino acid selection






50. UGA - UAG - UAA