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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. 'chain'

2. Removes Crystal Violet color from the gram negative bacteria

3. 'cluster'

4. Microbes; single celled microorganisms

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

6. Lipid component of endotoxin (Gram -)

7. Construction site to build proteins from mRNA and tRNA

8. Released from a lipopolysaccharide in a Gram - bacterium

9. Bonds between NAG and NAM

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

11. Spiral

12. Breaks down lactase

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

14. Loss of e-

15. Break down of molecules

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

17. Process of breaking down glucose to pyruvate

18. Found DNA to be the genetic material in cells

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

20. Purine adenine - ribose and 3 phosphates

21. Has 3 layers OM - CW - CM

22. Bonds between NAG & NAG or NAM & NAM

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

24. Signals the start of DNA replication

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

26. Acts as a mordant

27. Non-coding regions on mRNA

28. Uncoils the DNA strand

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

30. Polymer of carbohydrates joined together by glycosidic bonds

31. Outermost layer of the Gram Positive bacterium

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

33. 2 - 3 carbon molecules with 2 phosphates

34. Where RNA polymerase starts

35. Lactose binds to repressor and it releases from operator

36. Stains gram negative and gram positive bacteria

37. Components of the CW linked by peptide bonds

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

39. Keeps the DNA strands separated

40. Transfer RNA that attaches to amino acids

41. Comma shaped

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

43. Bond between amino acids in a protein

44. Coding regions on mRNA

45. Are Restriction Enzymes

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

47. 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+

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

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

50. Gain of e-