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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. Lays down DNA nucleotides






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






3. Found DNA to be the genetic material in cells






4. Outermost layer of the Gram Positive bacterium






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






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






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






8. Loss of e-






9. The last - ending codon that terminates the sequence






10. Keeps the DNA strands separated






11. Removes Crystal Violet color from the gram negative bacteria






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






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






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






15. Protein channel






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






17. Nicotinamide Adenine Dinuecleotide






18. NAD+ and a hydrogen - e- carrier






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






20. How strong a molecule/atom can pull e-






21. Signals the start of DNA replication






22. Has 2 layers CW - CM






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






24. Lagging strand






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






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






27. Construction site to build proteins from mRNA and tRNA






28. Replicated continuously






29. Acts as a mordant






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






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






32. Are Restriction Enzymes






33. Circular






34. Non-coding regions on mRNA






35. Energy required






36. Where RNA polymerase starts






37. Bond between amino acids in a protein






38. 'chain'






39. Series of amino acids held together by peptide bonds






40. Found the transforming factor to be DNA






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






42. Covalent bonds between amino acids






43. Microbes; single celled microorganisms






44. Location of translation






45. Leading strand






46. Unzips the DNA double Helix






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






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






49. Membrane surrounding the cytoplasm






50. Break down of molecules