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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. Inhibits thymidylate synthase down thymine






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






4. Makes an RNA primer on which DNA polymerase II can initiate replication






5. VItamin C






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






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






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






11. Neurons






12. 2 H bonds greater GC content greater melting point






13. 1) primary transcript combines with snRNPs and other proteins to form spliceosome 2) lariat shaped intermediate is generated 3) Lariat is removed and released to precisely join 2 exons






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






15. Inhibits by binding to the potassium side






16. Intervening noncoding segments of DNA






17. Inhibits bacterials dihydrofolate reducatese down thymine






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






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






20. UGA - UAG - UAA






21. Poly adenylation






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






23. Muscle






24. Enter G1 from G0 when stimulated Hepatocytes/lymphocytes






25. H1






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






27. Faulty collagen synthesis causing 1) hyperextensible skin 2) tendency to bleed 3) hypermobile joints






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






29. Xlinked recessive IV collagen bm - kidney - ear and eye -- nephritis and defness ocular disturbances






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






31. Proline - glycine






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






33. Hydroxy proline and hydroxylysine






34. Genetic bone disorder (brittle bone disease) type 1 colalgen - fractures (during birth) 2) Blue sclerae 3) hearing loss 4) dental imperfections 1:10000 may be confused with child abuse






35. Regulatory proteins that control cell cycle events; phase specific; activated CDKs






36. Cleave terminal regions of procollagen to transform into insoluable tropocolagen






37. Anti breast cancer - acts on mts






38. Has enough energy to created the peptide bond






39. CCA AT 3 PRIME END






40. Inhibits ribonucleotide reductase






41. Odd 30S plus 50 S=70S






42. Inhibits dihydrofolate reductase down thymine






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






44. Methyl THYmine has a meTHYl






45. Contain the actual genetic information coding for protein






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






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






48. ATP






49. AUG inAUGurates protein synthesis






50. Even 40S 60S =80S