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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. Components of the CW linked by peptide bonds






2. Monomers of proteins






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






4. Loss of e-






5. Location of translation






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






7. Microbes; single celled microorganisms






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






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






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






11. Comma shaped






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






13. Spiral






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






15. Not spontaneous - requires energy






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






17. 'chain'






18. Rod shaped






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






20. Place where repressor binds - where RNA polymerase binds






21. Break down of molecules






22. The process of creating mRNA using DNA






23. Non-coding regions on mRNA






24. NAD+ and a hydrogen - e- carrier






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






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






27. Spontaneous - doesn't require energy






28. Process of breaking down glucose to pyruvate






29. Covalent bonds between amino acids






30. Are Restriction Enzymes






31. Bonds between NAG and NAM






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






33. Leading strand






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






35. Build up of molecules






36. Found the double helicle structure of DNA






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






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






39. Unzips the DNA double Helix






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






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






42. Transfer RNA that attaches to amino acids






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






44. Uncoils the DNA strand






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






46. Keeps the DNA strands separated






47. 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+






48. Breaks down lactase






49. Acts as a mordant






50. Released from a lipopolysaccharide in a Gram - bacterium