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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. Breaks down lactase






2. Lagging strand

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3. Components of the CW linked by peptide bonds






4. Build up of molecules






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






6. 'water loving' (polar molecules) ie. Phosphate head






7. Comma shaped






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






9. Cuts the introns out of mRNA






10. Process of breaking down glucose to pyruvate






11. Spontaneous - doesn't require energy






12. Break down of molecules






13. Not spontaneous - requires energy






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






15. Many amino acids bonded together with peptide bonds






16. Found one to one ratio between base pairs






17. Non-coding regions on mRNA






18. Circular






19. Spiral






20. Nicotinamide Adenine Dinuecleotide






21. Monomers of proteins






22. Replicated in fragments known as Okazaki Fragments






23. Signals the start of DNA replication






24. Bond between amino acids in a protein






25. Series of amino acids held together by peptide bonds






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






27. Location of transcription






28. Acts as a mordant






29. Has 2 layers CW - CM






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






31. Stains the LPS of the gram negative bacteria






32. 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+






33. Outermost layer of the Gram Positive bacterium






34. 'cluster'






35. Lactose binds to repressor and it releases from operator






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






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






38. Are Restriction Enzymes






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






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






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






42. LPS layer of a Gram Negative bacterium






43. Membrane surrounding the cytoplasm






44. Released from a lipopolysaccharide in a Gram - bacterium






45. Attraction






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






47. Found the transforming factor to be DNA






48. Coding regions on mRNA






49. Binds to promoter which stops promotion of lactose






50. Murein; consists of sugars & amino acids that make a mesh-like layer outside the CW