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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. Lactose binds to repressor and it releases from operator






2. The process of creating mRNA using DNA






3. Stains the LPS of the gram negative bacteria






4. Lagging strand


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






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






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






8. 'chain'






9. Construction site to build proteins from mRNA and tRNA






10. Acts as a mordant






11. Uncoils the DNA strand






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






13. Not spontaneous - requires energy






14. Gain of e-






15. A sequence of three nucleotide in DNA & RNA






16. Found DNA to be the genetic material in cells






17. Found one to one ratio between base pairs






18. Membrane surrounding the cytoplasm






19. 2-layer permeable membrane that forms a continuous barrier around a cell






20. Place where repressor binds - where RNA polymerase binds






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






22. Outermost layer of the Gram Positive bacterium






23. Keeps the DNA strands separated






24. Lays down DNA nucleotides






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






26. Initiates transcription






27. Leading strand


28. 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+






29. Transfer RNA that attaches to amino acids






30. LPS layer of a Gram Negative bacterium






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






32. Process of breaking down glucose to pyruvate






33. Components of the CW linked by peptide bonds






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






35. Many amino acids bonded together with peptide bonds






36. 'cluster'






37. Covalent bonds between amino acids






38. Stains gram negative and gram positive bacteria






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






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






41. The empty space between the CW & the CM






42. The first - leading codon in a sequence of codons (AUG)






43. Bond between amino acids in a protein






44. 'pair'






45. Location of translation






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






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






48. Non-coding regions on mRNA






49. Rod shaped






50. Series of amino acids held together by peptide bonds