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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. Polymer of carbohydrates joined together by glycosidic bonds






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






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






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






5. Loss of e-






6. Process of using mRNA to create proteins






7. Location of translation






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






9. The empty space between the CW & the CM






10. Removes Crystal Violet color from the gram negative bacteria






11. Spiral






12. Replicated in fragments known as Okazaki Fragments






13. Is an enzyme that cuts double-stranded or single stranded DNA at specific recognition sites






14. Replicated continuously






15. LPS layer of a Gram Negative bacterium






16. Where RNA polymerase starts






17. The process of creating mRNA using DNA






18. Purine adenine - ribose and 3 phosphates






19. Keeps the DNA strands separated






20. Acts as a mordant






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






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






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






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






25. 2 - 3 carbon molecules with 2 phosphates






26. Found one to one ratio between base pairs






27. Lagging strand

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28. Place where repressor binds - where RNA polymerase binds






29. Covalent bonds between amino acids






30. Okazaki fragments are than linke






31. Non-coding regions on mRNA






32. 'chain'






33. Cuts the introns out of mRNA






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






35. Released from a lipopolysaccharide in a Gram - bacterium






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






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






38. Lays down DNA nucleotides






39. Phosphate is added to a molecule to make it unstable. Molecule more easily broken now.






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






41. Where the double stranded end came a part and the complimentary start join






42. Rod shaped






43. Has 2 layers CW - CM






44. Transfer RNA that attaches to amino acids






45. Has 3 layers OM - CW - CM






46. One of the four bases in mRNA (replaces thymine)






47. 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+






48. Stains the LPS of the gram negative bacteria






49. Construction site to build proteins from mRNA and tRNA






50. Lipid component of endotoxin (Gram -)