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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. Methionine - which may be removed before translation is completed






3. Neurons - skeletal - and cardiac muscle - RBCs






4. 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)






5. Epithelial cells






6. CUT 1 ring Cut the Py






7. Muscle






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






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






10. Exocytose procollagen into extracellylar sace






11. Neuroglia






12. Type III






13. Negatively charged DNA loops twice around histone octamers create a nucloesome bead.






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






15. Inhibits 50S peptidyl transferase






16. Seals






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






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






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






20. 3 H bonds






21. CCA AT 3 PRIME END






22. AUG inAUGurates protein synthesis






23. Prevents stranges from reannealing






24. Unattached to any membrane; site of cytosolic and organeller prtoeins






25. VItamin C






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






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






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






29. Each codon specifies only 1 amino acid






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






31. ATP- AMP (2 phosphoanhydride bonds)






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






33. Made from orogate precuror with PRPP added later






34. Elastase






35. Neurons






36. Prophas - metaphase - anaphase telophase






37. AD and AR- associated iwth joint dislocation - berry aneurysms - organ rupture






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






39. Tansport cellular cargo toward opposite ends of microtubule tracks






40. H1 string






41. Splicing out of introns






42. 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






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






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






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






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






47. Bind 30S subunit preventing attachment of aminoacyl - tRNA






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






49. HS1 - HSB - H2 - H4






50. Inhibits dihydrofolate reductase down thymine