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






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






3. Attraction






4. Bond between amino acids in a protein






5. Covalent bonds between amino acids






6. 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+






7. Lactose binds to repressor and it releases from operator






8. Released from a lipopolysaccharide in a Gram - bacterium






9. NAD+ and a hydrogen - e- carrier






10. 'cluster'






11. Unzips the DNA double Helix






12. Place where repressor binds - where RNA polymerase binds






13. Monomers of proteins






14. 2-layer permeable membrane that forms a continuous barrier around a cell






15. 'four'






16. Nicotinamide Adenine Dinuecleotide






17. Where RNA polymerase starts






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






19. Okazaki fragments are than linke






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






21. 'pair'






22. Break down of molecules






23. Circular






24. 'water loving' (polar molecules) ie. Phosphate head






25. The process of creating mRNA using DNA






26. Acts as a mordant






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






28. Found the transforming factor to be DNA






29. A set of codons that terminates the sequence (stop codon)






30. Are Restriction Enzymes






31. Location of translation






32. Has 3 layers OM - CW - CM






33. Protein channel






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






35. Membrane surrounding the cytoplasm






36. Binds to promoter which stops promotion of lactose






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






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






39. The empty space between the CW & the CM






40. Many amino acids bonded together with peptide bonds






41. Cuts the introns out of mRNA






42. Removes Crystal Violet color from the gram negative bacteria






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






44. Process of breaking down glucose to pyruvate






45. Microbes; single celled microorganisms






46. Lays down DNA nucleotides






47. Energy required






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






49. Stains gram negative and gram positive bacteria






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