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






2. 'pair'






3. Polymer of carbohydrates joined together by glycosidic bonds






4. Found one to one ratio between base pairs






5. 'chain'






6. Energy required






7. Microbes; single celled microorganisms






8. 'water fearing' (non polar molecules) ie. Lipid tail






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






10. Place where repressor binds - where RNA polymerase binds






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






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






13. Coding regions on mRNA






14. Build up of molecules






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






16. Nicotinamide Adenine Dinuecleotide






17. Many amino acids bonded together with peptide bonds






18. Process of using mRNA to create proteins






19. Series of amino acids held together by peptide bonds






20. Lays down DNA nucleotides






21. Not spontaneous - requires energy






22. Membrane surrounding the cytoplasm






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






24. Stains gram negative and gram positive bacteria






25. 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+






26. Bond between amino acids in a protein






27. A sequence of three nucleotide in DNA & RNA






28. Lipid component of endotoxin (Gram -)






29. Found DNA to be the genetic material in cells






30. LPS layer of a Gram Negative bacterium






31. Monomers of proteins






32. Location of translation






33. The last - ending codon that terminates the sequence






34. The process of creating mRNA using DNA






35. Rod shaped






36. Lagging strand

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






38. Cuts the introns out of mRNA






39. Is an enzyme that cuts double-stranded or single stranded DNA at specific recognition sites






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






41. Bonds between NAG & NAG or NAM & NAM






42. Purine adenine - ribose and 3 phosphates






43. Acts as a mordant






44. The empty space between the CW & the CM






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






46. Lactose binds to repressor and it releases from operator






47. Attraction






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






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






50. Gain of e-