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  1. Alex10

    Maths paper 12 ???

    If you didn't put the negative sign in front of sin and cos do you lose all marks entirely?
  2. Alex10

    AS biology paper 21 discussion!

    Explain the role of memory cells?
  3. Alex10

    AS biology paper 21 discussion!

    I think you had to write about the SAN and AVN and the wave of excitation and all..
  4. Alex10

    AS biology paper 21 discussion!

    Good job
  5. Alex10

    AS biology paper 21 discussion!

    Cytokinesis and DNA replication respectively.
  6. Alex10

    Maths, Biology, Chemistry and Psychology. Wbu? Good luck with your exams!

    Maths, Biology, Chemistry and Psychology. Wbu? Good luck with your exams!
    • Alex10
    • Profile post comment
  7. Alex10

    P1 notes (quick revision for exam)

    Thanks man, needed this.
  8. Alex10

    Same here, yeah AS. You?

    Same here, yeah AS. You?
    • Alex10
    • Profile post comment
  9. Alex10

    How you doing?

    How you doing?
    • Alex10
    • Profile post comment
  10. Alex10

    Biology AS Discuss problems!

    Answer is C. Cellulose depends on hydrogen bonds, as they hold together cellulose molecules in microfibrils. Haemoglobin has hydrogen bonds to maintains its tertiary structure and water's surface tension and cohesion is also due to hydrogen bonds. Glycogen, however, does not have any properties...
  11. Alex10

    DONE WITH PHYSICS PAPER 11

    Yeah it was 3 cubes
  12. Alex10

    Physics paper 1 question

    Just use the formula Voltage 2 = (Resistance 2/Resistance 1 + Resistance 2) x Voltage So that would be Voltage 2 = (20/10+20) multiplied by 12 = 8V
  13. Alex10

    History Source Work anybody?

    Me
  14. Alex10

    Is it just me or you guys find organic chemistry difficult too?

    What variant?
  15. Alex10

    Is it just me or you guys find organic chemistry difficult too?

    http://papers.xtremepapers.com/CIE/Cambridge%20IGCSE/Chemistry%20(0620)/0620_w09_qp_31.pdf Please help me with Question 4c. I don't understand how you're supposed to draw it.
  16. Alex10

    Anyone here doing history paper 4 tomorrow?

    I think I didn't do bad as well. I hadn't done much revision on Germany under Nazi rule so I was so relieved when questions on Weimar came up. Did you finish in good time? I started with part B and then finished part A on the dot! So I think i'll lose a few marks on question a (iii).
  17. Alex10

    Anyone here doing history paper 4 tomorrow?

    I just finished the paper. How did you find the German Depth Study?
  18. Alex10

    Biology 11 - Heterozygous female cat or

    Oh yeah.. Damn :/ Probably getting like 35/40
  19. Alex10

    Biology 11 - Heterozygous female cat or

    Why is it lipase?
  20. Alex10

    Biology 11 - Heterozygous female cat or

    What was the answer for the human DNA code?
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