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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. Leading strand






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






3. Gain of e-






4. Polymer of carbohydrates joined together by glycosidic bonds






5. Spiral






6. Replicated continuously






7. 'four'






8. Stains gram negative and gram positive bacteria






9. Unzips the DNA double Helix






10. The first - leading codon in a sequence of codons (AUG)






11. Okazaki fragments are than linke






12. Build up of molecules






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






14. Monomers of proteins






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






16. The chemical process in which glucose is broken down into two parts






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






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






19. Is an enzyme that glues the sticky or the blunt ends to join the strands






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






21. Break down of molecules






22. The empty space between the CW & the CM






23. Found DNA to be the genetic material in cells






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






25. Has 3 layers OM - CW - CM






26. Outermost layer of the Gram Positive bacterium






27. NAD+ and a hydrogen - e- carrier






28. Uncoils the DNA strand






29. Glyceraldyhyde 3 Phosphaet Dehydrogenase - phosphorolates and reduces NAD by adding 2e- and a H+






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






31. Location of translation






32. Attraction






33. Replicated in fragments known as Okazaki Fragments






34. It is the two single stranded regions of DNA that is being replicated






35. Membrane surrounding the cytoplasm






36. Lagging strand






37. 2 - 3 carbon molecules with 2 phosphates






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






39. Loss of e-






40. Is a code in which it is the same code forward as it is backwards - restriction sites






41. Are Restriction Enzymes






42. Binds to promoter which stops promotion of lactose






43. Has 2 layers CW - CM






44. Energy required






45. Not spontaneous - requires energy






46. Bonds between NAG and NAM






47. 'water fearing' (non polar molecules) ie. Lipid tail






48. Bacteria cell that contains: CW - periplasmic space - & CM






49. Lipid component of endotoxin (Gram -)






50. Construction site to build proteins from mRNA and tRNA