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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. Attraction






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






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






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






5. Gain of e-






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






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






8. Build up of molecules






9. Found one to one ratio between base pairs






10. Many amino acids bonded together with peptide bonds






11. Breaks down lactase






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






13. Has 2 layers CW - CM






14. Transfer RNA that attaches to amino acids






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






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






17. Removes Crystal Violet color from the gram negative bacteria






18. Non-coding regions on mRNA






19. Released from a lipopolysaccharide in a Gram - bacterium






20. Comma shaped






21. Nicotinamide Adenine Dinuecleotide






22. Bonds between NAG & NAG or NAM & NAM






23. A sequence of three nucleotide in DNA & RNA






24. Initiates transcription






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






26. Membrane surrounding the cytoplasm






27. Process of breaking down glucose to pyruvate






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






29. How cells use energy stored in food and molecules to make ATP






30. Leading strand

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






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






33. Phosphate is added to a molecule to make it unstable. Molecule more easily broken now.






34. The last - ending codon that terminates the sequence






35. Uncoils the DNA strand






36. 2-layer permeable membrane that forms a continuous barrier around a cell






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






38. LPS layer of a Gram Negative bacterium






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






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






41. Found DNA to be the genetic material in cells






42. Coding regions on mRNA






43. Circular






44. Lagging strand

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45. Signals the start of DNA replication






46. Covalent bonds between amino acids






47. Unzips the DNA double Helix






48. Lipid component of endotoxin (Gram -)






49. Bond between amino acids in a protein






50. Spontaneous - doesn't require energy