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






2. Lagging strand


3. A sequence of three nucleotide in DNA & RNA






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






5. Replicated continuously






6. 'four'






7. Loss of e-






8. LPS layer of a Gram Negative bacterium






9. The process of creating mRNA using DNA






10. 'pair'






11. Membrane surrounding the cytoplasm






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






13. Spontaneous - doesn't require energy






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






15. Transfer RNA that attaches to amino acids






16. 2-layer permeable membrane that forms a continuous barrier around a cell






17. Cuts the introns out of mRNA






18. Purine adenine - ribose and 3 phosphates






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






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






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






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






23. Bonds between NAG & NAG or NAM & NAM






24. Process of breaking down glucose to pyruvate






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






26. Nicotinamide Adenine Dinuecleotide






27. Location of transcription






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






29. Acts as a mordant






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






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






32. Spiral






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






34. Are Restriction Enzymes






35. Uncoils the DNA strand






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






37. Place where repressor binds - where RNA polymerase binds






38. Has 2 layers CW - CM






39. Coding regions on mRNA






40. Rod shaped






41. Not spontaneous - requires energy






42. Comma shaped






43. Construction site to build proteins from mRNA and tRNA






44. Outermost layer of the Gram Positive bacterium






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






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






47. Keeps the DNA strands separated






48. Non-coding regions on mRNA






49. Attraction






50. Process of using mRNA to create proteins