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






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






3. ATP- AMP (2 phosphoanhydride bonds)






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






5. Contain the actual genetic information coding for protein






6. Even 40S 60S =80S






7. Muscle






8. Splicing out of introns






9. Bind 50S blocking translocation






10. Base + ribose






11. ATP






12. Trimming removal of n or c terminal propeptides from zymogens to generate mature proteinds






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






14. Neuroglia






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






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






17. The N to C






18. Anti cancer - act on microtubules






19. AUG inAUGurates protein synthesis






20. H1






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






22. Proline - glycine






23. Inhibits bacterials dihydrofolate reducatese down thymine






24. Inhibits by binding to the potassium side






25. Substituting a pyramidine for a pyrimadine






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






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






28. Made from IMP precursor






29. 1P blocked by chloramphenicaol and macrolide






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






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






32. Microtubule polymerization defect resulting in lowered phagocytosis. results in recurrent pyogenic infections - partial albinism and peripheral neuropathy






33. Inhibits dihydrofolate reductase down thymine






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






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






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






37. Enter G1 from G0 when stimulated Hepatocytes/lymphocytes






38. H1 string






39. Type III






40. Non homologous end joining






41. Hydroxy proline and hydroxylysine






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






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






44. Nucleotide excision repair - Base Excision repair - Mismath repair






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






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






47. Alpha 1 antitrypisn






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






49. 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






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