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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. 'chain'






2. Removes Crystal Violet color from the gram negative bacteria






3. 'cluster'






4. Microbes; single celled microorganisms






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






6. Lipid component of endotoxin (Gram -)






7. Construction site to build proteins from mRNA and tRNA






8. Released from a lipopolysaccharide in a Gram - bacterium






9. Bonds between NAG and NAM






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






11. Spiral






12. Breaks down lactase






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






14. Loss of e-






15. Break down of molecules






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






17. Process of breaking down glucose to pyruvate






18. Found DNA to be the genetic material in cells






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






20. Purine adenine - ribose and 3 phosphates






21. Has 3 layers OM - CW - CM






22. Bonds between NAG & NAG or NAM & NAM






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






24. Signals the start of DNA replication






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






26. Acts as a mordant






27. Non-coding regions on mRNA






28. Uncoils the DNA strand






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






30. Polymer of carbohydrates joined together by glycosidic bonds






31. Outermost layer of the Gram Positive bacterium






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






33. 2 - 3 carbon molecules with 2 phosphates






34. Where RNA polymerase starts






35. Lactose binds to repressor and it releases from operator






36. Stains gram negative and gram positive bacteria






37. Components of the CW linked by peptide bonds






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






39. Keeps the DNA strands separated






40. Transfer RNA that attaches to amino acids






41. Comma shaped






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






43. Bond between amino acids in a protein






44. Coding regions on mRNA






45. Are Restriction Enzymes






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






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






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






50. Gain of e-