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






2. Circular






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






4. Okazaki fragments are than linke






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






6. Found DNA to be the genetic material in cells






7. Bonds between NAG & NAG or NAM & NAM






8. Rod shaped






9. Location of transcription






10. Found the double helicle structure of DNA






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






12. Messenger RNA that leaves the nucleus with the genetic code for a protein






13. Coding regions on mRNA






14. Covalent bonds between amino acids






15. Lagging strand


16. Nicotinamide Adenine Dinuecleotide






17. Series of amino acids held together by peptide bonds






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






19. Transfer RNA that attaches to amino acids






20. Loss of e-






21. Breaks down lactase






22. 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+






23. Unzips the DNA double Helix






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






25. Lactose binds to repressor and it releases from operator






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






27. Stains gram negative and gram positive bacteria






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






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






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






31. Leading strand


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






33. Spiral






34. Stains the LPS of the gram negative bacteria






35. Spontaneous - doesn't require energy






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






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






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






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






40. Lays down DNA nucleotides






41. Uncoils the DNA strand






42. Many amino acids bonded together with peptide bonds






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






44. Protein channel






45. 'four'






46. LPS layer of a Gram Negative bacterium






47. Where RNA polymerase starts






48. Purine adenine - ribose and 3 phosphates






49. Signals the start of DNA replication






50. Comma shaped