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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. One codon AUG






2. Made from orogate precuror with PRPP added later






3. Inhibits by binding to the potassium side






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






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






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






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






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






9. Prophas - metaphase - anaphase telophase






10. Antigout - acts on mts






11. Neuroglia






12. ATP- AMP (2 phosphoanhydride bonds)






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






14. Ketone






15. Unmethylated - newly synthesized string is recognized - mismatched nucleotides are removed and the gap is filled and resealed






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






17. Blocks denovo purine synthesis






18. Poly adenylation






19. Non homologous end joining






20. Intervening noncoding segments of DNA






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






22. No proofreading function but can initiate chains. RNA poymerase II opens DNA at promoter site






23. H1






24. Change resulting in early stop codon






25. Condensed - transciptionally inactive HC- Highly condensed






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






27. Prokaryotic only. Degrades RNA primer and fills in the gap with DNA (5 prime to 3 prime exonuclease)






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






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






30. 5 prime to 3 prime






31. Inhbits RNA pol II (found in death cap mushrooms)






32. The 3 prime hydroxyl of the nascent chain is the target






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






34. H1 string






35. Odd 30S plus 50 S=70S






36. Even 40S 60S =80S






37. 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






38. Enter G1 from G0 when stimulated Hepatocytes/lymphocytes






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






40. Muscle






41. Inhibits dihydrofolate reductase down thymine






42. G1 - S - G2 - Mitosis






43. Neurons






44. Site where negative regulators bind






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






46. Introns stay In the nucleus whereas EXons EXit and are EXpressed






47. Ribonucleotide reductase






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






49. The N to C






50. Genetic code is conserved throughout evolution