Test your basic knowledge |

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 DNA to be the genetic material in cells






2. Are Restriction Enzymes






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






4. Uncoils the DNA strand






5. Energy required






6. Break down of molecules






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






8. Loss of e-






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






10. Bond between amino acids in a protein






11. Circular






12. Spontaneous - doesn't require energy






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






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






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






16. Breaks down lactase






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






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






19. Outermost layer of the Gram Positive bacterium






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






21. Lipid component of endotoxin (Gram -)






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






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






24. Initiates transcription






25. 'chain'






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






27. Membrane surrounding the cytoplasm






28. A sequence of three nucleotide in DNA & RNA






29. Released from a lipopolysaccharide in a Gram - bacterium






30. Coding regions on mRNA






31. 'pair'






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






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






34. Replicated continuously






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






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






37. Place where repressor binds - where RNA polymerase binds






38. Location of transcription






39. Bonds between NAG & NAG or NAM & NAM






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






41. Rod shaped






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






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






44. Process of using mRNA to create proteins






45. Acts as a mordant






46. Unzips the DNA double Helix






47. Many amino acids bonded together with peptide bonds






48. Replicated in fragments known as Okazaki Fragments






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






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