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  1. S

    Biology practicals 34

    How many marks was that drawing out of?
  2. S

    Biology practicals 34

    I think I forgot to label the guard cells :/
  3. S

    Biology practicals 34

    What were the iodine readings?
  4. S

    biology practical

    Just because. Is everyone done with the practical
  5. S

    biology practical

    Are we sure that everyone's do ecquth the practical btw
  6. S

    biology practical

    That's what I wrote :) the reaction is inhibited
  7. S

    biology practical

    What does it say?
  8. S

    biology practical

    It wasnt an inhibitor...inhibitors attach to substances...ascorbic acid doesn't do that. Besides inhibitors are usually involved in reactions concerning enzymes
  9. S

    biology practical

    Thresholds gonna be the same as it is every year...depends on how many marks we lose individually cause they cut marks for the tiniest mistajes!
  10. S

    A level Biology: Post your doubts here!

    Sclerenchyma cells are dead without a nucleus and having a thick cell wall. They're usually found in stems next to the vb. the cambium consists of undifferentiated cells found in between the xylem and the phloem in stems
  11. S

    A level Biology: Post your doubts here!

    How was it generally?
  12. S

    A level Biology: Post your doubts here!

    34....has anyone else done it? No discussion tho
  13. S

    A level Biology: Post your doubts here!

    How was it guys?
  14. S

    A level Biology: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Biology%20(9700)/9700_s10_qp_32.pdf Q2 b part II Where's the xylem/vascular bundle?
  15. S

    BIOLOGY 34 27 MAY 2014

    What for?
  16. S

    A level Biology: Post your doubts here!

    I'm guessing it means u can take a false origin if your scale doesn't fit..
  17. S

    A level Biology: Post your doubts here!

    What year?
  18. S

    Physics: Post your doubts here!

    Wait so the terminal potential difference isn't the pd wcross the battery's internal resistance? I thought that's what it meant so I did 4/6 x 3 and got 1 V
  19. S

    Physics: Post your doubts here!

    I did all that except the last part where you subtract 4 from 8...why do u do that? The pd on either side of X and Y is 8+4=12 so shouldnt the total difference in pd be 12-12=O
  20. S

    Physics: Post your doubts here!

    Um could someone explain the concept of weight, upthrust and viscous drag to me? Which is the largest in air? And in water? And what us the result force acting on a body under water? Also does an object accelerate or decelerate as it falls through air...in both the absence and presence of air...
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