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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. Odd 30S plus 50 S=70S






2. Prophas - metaphase - anaphase telophase






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






4. 9+2 arrangement of microtubules -






5. 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






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






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






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






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






10. The 5prime end (energy for the bond)






11. Ribonucleotide reductase






12. Base + ribose






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






14. 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






15. ATP- AMP (2 phosphoanhydride bonds)






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






17. Methionine - which may be removed before translation is completed






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






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






20. Made from orogate precuror with PRPP added later






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






22. 1P blocked by chloramphenicaol and macrolide






23. Base+ribose+phosphate linked by a phosphodiester bond






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






25. Scrutinizes aa before and after it binds to tRNA. If incorrect bond is hydrolyzed.






26. AUG inAUGurates protein synthesis






27. Tansport cellular cargo toward opposite ends of microtubule tracks






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






29. 1 RNA polymerase (multisubunite complex) makes all 3 kinds of RNA






30. Intervening noncoding segments of DNA






31. 3 sodium out for 2 potassium in (nout - kin)takes 1 atp and the machine is phosphorylated during the machine cycle






32. Attachment of ubiquitin to defective proteinds to tag them for breakdown






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






34. GTP






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






36. CCA AT 3 PRIME END






37. Antifungal - act on microtubules






38. Neurons






39. 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






40. Seals






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






42. 1P (blocked by tetracycline)






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






44. Hydroxy proline and hydroxylysine






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






46. Less condensed - transciptionally active=eu truly transcobed






47. Contain the actual genetic information coding for protein






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






49. Strethchy protein within lungs - large artiers - elastic liaments - vocal cords - ligamenta flava)






50. Proline - glycine