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Recent content by osama123

  1. osama123

    Physics may/june results

    CIE releases percentages with results in some regions while they only release grades in other parts
  2. osama123

    What r ur results???

    they release percentages with results in some regions such as Pakistan although i know that it is not done here in Saudi Arabia or most of the gulf states.
  3. osama123

    Bio p41 how was it

    http://www.bbc.co.uk/news/world-us-canada-19091880 read this article they used they used the concept from this for GM mosquito
  4. osama123

    How was Biology Paper 42

    nope i still have to do i have 41 and was just speculating about the gt since its around this mark in previous 2 sessions
  5. osama123

    How was Biology Paper 42

    wishing the gt should be around 65
  6. osama123

    getting high marks in sat 2 biology

    u need to have to atleast complete as level and done with A2 syllabus other than the applications before u can appear for sat II bio
  7. osama123

    Biology Paper:1 Help plz...how to revise?

  8. osama123

    Does any one hav the May/June papers for 2012?

    they wont be released until after the result in august
  9. osama123

    Biology Paper:1 Help plz...how to revise?

    As the active site is specific for each substrate this is possible due to r-groups of the amino acids which bind with the substrate forming the enzyme-subtrate complex so primary structure is important. secondary and tertiary structure is important for the sake of bonds holding the enzyme...
  10. osama123

    how was physics paper 21

    i hope gt is from 40-46
  11. osama123

    how was physics paper 21

    pretty good but i think lost abt 10 marks
  12. osama123

    AS bio 21 discussion anyone?

    i still in shock that they changed the question pattern so much no long questions of 5 marks nothing from the usual topics of transport gaseous exchange diseases and i lost abt 10-15 marks hope gt is around 40-45
  13. osama123

    How was your biology paper 22? I am so sad and devastated.

    hey can anyone tell me why the DNA of virus has more thymine that adenine
  14. osama123

    how was bio p2?

    phosphodiester bond
  15. osama123

    Biology paper 22 predictions

    P21 is tommorow as for important topic remeber the cardic cycle and the fuctions of valves by throuly
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