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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. The empty space between the CW & the CM






2. Covalent bonds between amino acids






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






4. The process of creating mRNA using DNA






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






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






7. Breaks down lactase






8. Released from a lipopolysaccharide in a Gram - bacterium






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






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






11. Attraction






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






13. Stains gram negative and gram positive bacteria






14. Outermost layer of the Gram Positive bacterium






15. Construction site to build proteins from mRNA and tRNA






16. Not spontaneous - requires energy






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






18. 'cluster'






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






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






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






22. Bonds between NAG and NAM






23. Has 2 layers CW - CM






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






25. Comma shaped






26. 2-layer permeable membrane that forms a continuous barrier around a cell






27. Lagging strand






28. Removes Crystal Violet color from the gram negative bacteria






29. 2 - 3 carbon molecules with 2 phosphates






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






31. 'chain'






32. Polymer of carbohydrates joined together by glycosidic bonds






33. Keeps the DNA strands separated






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






35. Break down of molecules






36. Acts as a mordant






37. Initiates transcription






38. Monomers of proteins






39. NAD+ and a hydrogen - e- carrier






40. Found one to one ratio between base pairs






41. Series of amino acids held together by peptide bonds






42. Rod shaped






43. Process of using mRNA to create proteins






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






45. Gain of e-






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






47. Replicated in fragments known as Okazaki Fragments






48. Many amino acids bonded together with peptide bonds






49. Signals the start of DNA replication






50. Build up of molecules