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






2. Site of dteroid synthesis and detoxification of druigs and poisons (liver hepatocytes and steroid horomore adrenal cortex)






3. Condensed - transciptionally inactive HC- Highly condensed






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






5. 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






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






7. CUT 1 ring Cut the Py






8. Neurons - skeletal - and cardiac muscle - RBCs






9. 4 high enrgy bonds






10. Bm - kidney - ears and eyes






11. Antifungal - act on microtubules






12. Lysine/hydroxylysine and combines to form collagen






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






14. Enter G1 from G0 when stimulated Hepatocytes/lymphocytes






15. Changed aaconservative - new aa is similar in chemical structure






16. Responsible for the accuracy of amino acid selection






17. Codes for formyl methionine (f - Met)






18. Substituting a pyramidine for a pyrimadine






19. 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






20. Intervening noncoding segments of DNA






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






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






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






24. H1






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






26. Inhibit DNA gyrase (specific prokaryotic topoisomerase)






27. Hydroxy proline and hydroxylysine






28. Retrograde to microtubules






29. One codon AUG






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






31. Tansport cellular cargo toward opposite ends of microtubule tracks






32. 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






33. Ribonucleotide reductase






34. Inhibits by binding to the potassium side






35. Methyl THYmine has a meTHYl






36. Hn RNA






37. Close to - far from or even within (in an intron) the gene whose expression it regulates






38. Inhibit formation of the initation complex and cause misreading of mRNA






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






40. Inhibits ribonucleotide reductase






41. 1 RNA polymerase (multisubunite complex) makes all 3 kinds of RNA






42. Made from orogate precuror with PRPP added later






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






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






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






46. Inhibits dihydrofolate reductase down thymine






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






48. 3 sodium out for 2 potassium in (nout - kin)takes 1 atp and the machine is phosphorylated during the machine cycle






49. Inhibits 50S peptidyl transferase






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