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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. MRNA






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






3. Neuroglia






4. Substituting a purine for a pyrimdine or vice versa






5. One codon AUG






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






7. Genetic code is conserved throughout evolution






8. 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)






9. VItamin C






10. Exocytose procollagen into extracellylar sace






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






12. Inhibits bacterials dihydrofolate reducatese down thymine






13. Bm - kidney - ears and eyes






14. Phosphorylation - glycosloation - hyderoxylation






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






16. P53 and RB normally inhibit g1 to S progression






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






18. Splicing out of introns






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






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






21. Retrograde to microtubules






22. 1P (blocked by tetracycline)






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






24. No proofreading function but can initiate chains. RNA poymerase II opens DNA at promoter site






25. Antigout - acts on mts






26. Condensed - transciptionally inactive HC- Highly condensed






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






28. A site - incoming aminoacyl tRNA - Psite accomodates growing Peptide - E site holds EmplytRNA as it exits






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






30. Must be both activated and inactivated for cell cycle to progress






31. Binds 50S blocking translocation






32. The 3 prime hydroxyl of the nascent chain is the target






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






34. Alpha 1 antitrypisn






35. UGA - UAG - UAA






36. Uracil






37. Elastase






38. Changed aaconservative - new aa is similar in chemical structure






39. Epithelial cells






40. Seals






41. Neurons - skeletal - and cardiac muscle - RBCs






42. Intervening noncoding segments of DNA






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






44. You glyucosolate hte pro - alpha chain lysine resudens and form procollagen (triple helix of alpha chains)






45. Base + ribose






46. Anti cancer - act on microtubules






47. Proline - glycine






48. 3 sodium out for 2 potassium in (nout - kin)takes 1 atp and the machine is phosphorylated during the machine cycle






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






50. ATP