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DSST Biochemistry 2

Subjects : dsst, science
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. Stains the LPS of the gram negative bacteria






2. Replicated continuously






3. Has 3 layers OM - CW - CM






4. The empty space between the CW & the CM






5. Attraction






6. How protein synthesis is regulated prokaryoticly on plasmid of the cell






7. Found the transforming factor to be DNA






8. Construction site to build proteins from mRNA and tRNA






9. Energy required






10. 'cluster'






11. Protein channel






12. The codon on tRNA that matches up with and attaches to a codon on mRNA






13. The last - ending codon that terminates the sequence






14. Unzips the DNA double Helix






15. Are Restriction Enzymes






16. Place where repressor binds - where RNA polymerase binds






17. Location of translation






18. Binds to promoter which stops promotion of lactose






19. 2 - 3 carbon molecules with 2 phosphates






20. Cell that contains a nucleus and membrane bound organelles (big cell)






21. That doesn't contain a nucleus or membrane bound organelles (small cell)






22. A set of codons that terminates the sequence (stop codon)






23. Protein that makes RNA primers and makes mRNA from DNA






24. 2 phosphates attached to glucose forming a 6 carbon compound & 2Pi (1 phosphate glucose) - ATP becomes ADP - done twice to make a 1 -6 glucose - phosphorolates and makes NAD+






25. Bonds between NAG and NAM






26. Comma shaped






27. Found DNA to be the genetic material in cells






28. Many amino acids bonded together with peptide bonds






29. Non polar molecule component of the CM (the 'tail')






30. Polar molecule component of the CM (the 'head')






31. Removes Crystal Violet color from the gram negative bacteria






32. Stop free radicals from damaging cells - helps O trap e-






33. Microbes; single celled microorganisms






34. A sequence of three nucleotide in DNA & RNA






35. Keeps the DNA strands separated






36. Lays down DNA nucleotides






37. Initiates transcription






38. Build up of molecules






39. Transfer RNA that attaches to amino acids






40. 2-layer permeable membrane that forms a continuous barrier around a cell






41. Lays down RNA Primase to indicate the start of replication






42. Stains the Lipid A of gram positive bacteria cell wall






43. Cuts the introns out of mRNA






44. Bacteria cell that contains: OM - CW - periplamic space - & CM






45. Spontaneous - doesn't require energy






46. Makes a repressor - binds to promoter/operator to stop RNA polymerase






47. How strong a molecule/atom can pull e-






48. Stains gram negative and gram positive bacteria






49. Chains of molecules attached to the CW of a Gram + bacterium






50. Loss of e-