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






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






3. Process of breaking down glucose to pyruvate






4. Place where repressor binds - where RNA polymerase binds






5. Build up of molecules






6. Membrane surrounding the cytoplasm






7. Lipid component of endotoxin (Gram -)






8. Process of using mRNA to create proteins






9. Found the transforming factor to be DNA






10. 'pair'






11. Location of transcription






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






13. Lays down DNA nucleotides






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






15. Outermost layer of the Gram Positive bacterium






16. Monomers of proteins






17. Okazaki fragments are than linke






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






19. Removes Crystal Violet color from the gram negative bacteria






20. Location of translation






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






22. Polymer of carbohydrates joined together by glycosidic bonds






23. Coding regions on mRNA






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






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






26. 2 - 3 carbon molecules with 2 phosphates






27. Not spontaneous - requires energy






28. Uncoils the DNA strand






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






30. Protein channel






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






32. Signals the start of DNA replication






33. Break down of molecules






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






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






36. 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+






37. 'chain'






38. Found DNA to be the genetic material in cells






39. Breaks down lactase






40. Series of amino acids held together by peptide bonds






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






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






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






44. 2-layer permeable membrane that forms a continuous barrier around a cell






45. Found one to one ratio between base pairs






46. 'four'






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






48. Loss of e-






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






50. Covalent bonds between amino acids