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DSST Biochemistry 2

Subjects : dsst, science
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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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. The empty space between the CW & the CM

2. Covalent bonds between amino acids

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

4. The process of creating mRNA using DNA

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

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

7. Breaks down lactase

8. Released from a lipopolysaccharide in a Gram - bacterium

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

10. Stains the Lipid A of gram positive bacteria cell wall

11. Attraction

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

13. Stains gram negative and gram positive bacteria

14. Outermost layer of the Gram Positive bacterium

15. Construction site to build proteins from mRNA and tRNA

16. Not spontaneous - requires energy

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

18. 'cluster'

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

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

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

22. Bonds between NAG and NAM

23. Has 2 layers CW - CM

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

25. Comma shaped

26. 2-layer permeable membrane that forms a continuous barrier around a cell

27. Lagging strand

28. Removes Crystal Violet color from the gram negative bacteria

29. 2 - 3 carbon molecules with 2 phosphates

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

31. 'chain'

32. Polymer of carbohydrates joined together by glycosidic bonds

33. Keeps the DNA strands separated

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

35. Break down of molecules

36. Acts as a mordant

37. Initiates transcription

38. Monomers of proteins

39. NAD+ and a hydrogen - e- carrier

40. Found one to one ratio between base pairs

41. Series of amino acids held together by peptide bonds

42. Rod shaped

43. Process of using mRNA to create proteins

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

45. Gain of e-

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

47. Replicated in fragments known as Okazaki Fragments

48. Many amino acids bonded together with peptide bonds

49. Signals the start of DNA replication

50. Build up of molecules