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  1. Z

    Biology P4 random notes

    I would like to use this thread to post some random notes which I hope help you with the boring revision ordeal. ATP is UNIVERSAL energy currency as it is found in most cells 1. Energy CURRENCY molecule: IMMEDIATE donor of energy to the endothermic reactions (e.g. ATP) 2. Energy STORAGE...
  2. Z

    AS knowledge in A2?

    Do we require any detailed knowledge of AS syllabus (such as glycosidic bonds, Bohr's cycle and what not) for A2 examinations apart from the basics such as enzymes and transportation?? The only evidence of AS knowledge requirement I have found till date in the A2 papers has been "antibody...
  3. Z

    Super confusing permutation and combination question for me

    Okay, I made this question on my own and as expected I couldn't solve this question. So, here is the question: In how many ways can 3 of the letters chosen from the given set be arranged: AAABBBCCCDDDEEF That is first you have to choose 3 letters and then arrange them. In how many ways can...
  4. Z

    Biology P5

    I am not very good at bio P5. But I hope I will get some support from the readers to continue this thread. All I am going to do is start the thread. So, here it goes buddies: A. How to calibrate an eyepiece graticule: 1. Use an eye piece lens that has been fitted with a graticule (lol) 2...
  5. Z

    pre-2002 papers

    guys, does anyone know how to access pre 2002 past papers. Xtremepapers doesn't have them
  6. Z

    Chemo P5 tips

    Okay guys, just over with P5. Let me put down whatever I understood from the P5s of M/J 2002 to O/N 2010 into words. Hopefully someone can correct me when I make mistakes and yeah add to what I have written (of course!) For planning section: 1. When asked to draw a diagram, ALWAYS mention the...
  7. Z

    divided flask

    Does anyone have a proper description or a diagram to explain what a divided flask actually is?? All I have perceived from the ERs is that it refers to a test tube inside a flask!!!!!
  8. Z

    chemo p5

    deals with chemistry p5: what is the difference between the terms: 1. toxic 2. corrosive 3. irritant 4. harmful
  9. Z

    chemistry p5

    Do you guys have any useful materials regarding chemistry P5??? Tips would be great as well. Thanks in advance.
  10. Z

    Radioactive decay linked with uncertainty

    PLEASE help me do this question: M/J 2009 Physics Paper 4 q:9(b). Couldn't figure out the heads or tails of this question http://www.xtremepapers.me/CIE/Internat ... 9_qp_4.pdf
  11. Z

    Wavebands

    What does long wave (LW) wavebands and short wave(SW) wave bands mean in telecommunication :cry: Also, why does AM use LW and SW waveband while FM transmission use Very High Frequency (VHF) waveband for transmission as carrier waves?
  12. Z

    CT scan

    Can anyone please explain to me the principles of CT scanning??
  13. Z

    Biology study guide

    Does anybody have a link to a biology study guide torrent or something of that sort???
  14. Z

    O/N 2010 P63 Q. no.: 6 (ii) and (iii)

    http://www.xtremepapers.me/CIE/Internat ... _qp_63.pdf Can anyone please explain me how I can approach this permutation question?? The mark scheme doesn't make sense!
  15. Z

    O/N 2010 Examiner Report

    When will the O/N 2010 ER be available on xtremepapers? Any other wesite?
  16. Z

    O/N 2010 question papers

    How can i access the question papers of O/N 2010 session?
  17. Z

    9709 M/J 2003 P6 : false zero

    Q no. 1 (a) (i) i don't understand why a false zero can make the diagram misleading
  18. Z

    full form of FB and FA

    We are provided with solutions FB3, FB4 and FB5 what does "FB" stand for here? I think B is just a notation and that "F" is the more important term.
  19. Z

    Examiner's reports

    When will the examiner's report of M/J 2010 be published in Xtremepapers.net.
  20. Z

    Namaste!

    Namaste everyone! I am a student from Nepal!
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