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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. Protein that makes RNA primers and makes mRNA from DNA






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






3. Nicotinamide Adenine Dinuecleotide






4. Process of using mRNA to create proteins






5. Binds to promoter which stops promotion of lactose






6. Lays down DNA nucleotides






7. Has 2 layers CW - CM






8. Cuts the introns out of mRNA






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






10. The process of creating mRNA using DNA






11. Outermost layer of the Gram Positive bacterium






12. Found the transforming factor to be DNA






13. Unzips the DNA double Helix






14. 'pair'






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






16. Okazaki fragments are than linke






17. Purine adenine - ribose and 3 phosphates






18. Spiral






19. Lactose binds to repressor and it releases from operator






20. Bonds between NAG and NAM






21. Break down of molecules






22. Transfer RNA that attaches to amino acids






23. Makes a repressor - binds to promoter/operator to stop RNA polymerase






24. Membrane surrounding the cytoplasm






25. How strong a molecule/atom can pull e-






26. The empty space between the CW & the CM






27. Initiates transcription






28. Place where repressor binds - where RNA polymerase binds






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






30. 'cluster'






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






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






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






34. Stains gram negative and gram positive bacteria






35. Covalent bonds between amino acids






36. Circular






37. 'chain'






38. Cell that contains a nucleus and membrane bound organelles (big cell)






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






40. Spontaneous - doesn't require energy






41. Coding regions on mRNA






42. LPS layer of a Gram Negative bacterium






43. Signals the start of DNA replication






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






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






46. Monomers of proteins






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






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






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






50. Many amino acids bonded together with peptide bonds