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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. Muscle






2. Codes for formyl methionine (f - Met)






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






4. Cilia - glagella - mitotic spindle - neurons - centrioles






5. Inhibits dihydrofolate reductase down thymine






6. RER translation of collagen alpha chains (preprocollagen) usually Gly-X-Y






7. Intervening noncoding segments of DNA






8. Brings together 2 ends of DNA fragments no requirement for homology






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






10. Made from orogate precuror with PRPP added later






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






12. 1 RNA polymerase (multisubunite complex) makes all 3 kinds of RNA






13. Seals






14. Hn RNA






15. Base + ribose






16. Different exons can be combined to make nique protiens in different times






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






18. Poly adenylation






19. VItamin C






20. 1P (blocked by tetracycline)






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






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






23. 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






24. 75-90 nucleotides - 2ary structure cloverleaf form anticodon end is opposite 3 prime aminoacyl end






25. Change resulting in early stop codon






26. Inhibits 50S peptidyl transferase






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






28. Substituting a pyramidine for a pyrimadine






29. Connective tissue






30. 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)






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






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






33. Elastase






34. 2 H bonds greater GC content greater melting point






35. 3 H bonds






36. Microvilli - muscle contraction - cytokinesis - adhering juntions






37. Enter G1 from G0 when stimulated Hepatocytes/lymphocytes






38. Anit helminth - act on microtubules






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






40. Cyclin depndent kinases; consituative and inactive






41. UGA - UAG - UAA






42. Hydroxy proline and hydroxylysine






43. Ketone






44. Bind 50S blocking translocation






45. Blocks denovo purine synthesis






46. 5 prime to 3 prime






47. Methyl THYmine has a meTHYl






48. Antigout - acts on mts






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






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