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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. Found the double helicle structure of DNA






2. Where RNA polymerase starts






3. Location of translation






4. Construction site to build proteins from mRNA and tRNA






5. Has 2 layers CW - CM






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






7. Place where repressor binds - where RNA polymerase binds






8. 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+






9. Released from a lipopolysaccharide in a Gram - bacterium






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






11. Signals the start of DNA replication






12. Unzips the DNA double Helix






13. Non-coding regions on mRNA






14. Bonds between NAG & NAG or NAM & NAM






15. Location of transcription






16. Lactose binds to repressor and it releases from operator






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






18. 2 - 3 carbon molecules with 2 phosphates






19. Many amino acids bonded together with peptide bonds






20. Rod shaped






21. Bonds between NAG and NAM






22. Polymer of carbohydrates joined together by glycosidic bonds






23. Outermost layer of the Gram Positive bacterium






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






25. Process of breaking down glucose to pyruvate






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






27. Okazaki fragments are than linke






28. Spiral






29. Process of using mRNA to create proteins






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






31. 'four'






32. Membrane surrounding the cytoplasm






33. Protein channel






34. NAD+ and a hydrogen - e- carrier






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






36. Breaks down lactase






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






38. (LPS); lipids and polysaccharides linked together by covalent bonds






39. Not spontaneous - requires energy






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






41. A sequence of three nucleotide in DNA & RNA






42. Attraction






43. Binds to promoter which stops promotion of lactose






44. Stains gram negative and gram positive bacteria






45. 2-layer permeable membrane that forms a continuous barrier around a cell






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






47. Monomers of proteins






48. How cells use energy stored in food and molecules to make ATP






49. The empty space between the CW & the CM






50. Leading strand