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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. Changed aaconservative - new aa is similar in chemical structure






2. H1






3. 1P blocked by chloramphenicaol and macrolide






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






5. 3 sodium out for 2 potassium in (nout - kin)takes 1 atp and the machine is phosphorylated during the machine cycle






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






7. The N to C






8. Made from orogate precuror with PRPP added later






9. Bm - kidney - ears and eyes






10. Methyl THYmine has a meTHYl






11. Less condensed - transciptionally active=eu truly transcobed






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






13. Microvilli - muscle contraction - cytokinesis - adhering juntions






14. Non homologous end joining






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






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






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






18. Ribonucleotide reductase






19. Change resulting in early stop codon






20. GTP






21. 1 RNA polymerase (multisubunite complex) makes all 3 kinds of RNA






22. Antifungal - act on microtubules






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






24. Inhibits 50S peptidyl transferase






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






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






27. 2 H bonds greater GC content greater melting point






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






29. 3 H bonds






30. Exocytose procollagen into extracellylar sace






31. Even 40S 60S =80S






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






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






34. VItamin C






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






36. H1 string






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






38. CCA AT 3 PRIME END






39. Epithelial cells






40. Neurons






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






42. Muscle






43. Antigout - acts on mts






44. 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






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






46. AUG inAUGurates protein synthesis






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






48. Never go to Go divide rapidly with short G1 bone marrow - gut epithelium - skin - hair follicles






49. DNA And RNA synthesized in the 5-3 direction






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