• We need your support!

    We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
    Click here to Donate Now (View Announcement)

Recent content by SalmaXXXX

  1. S

    A level Biology: Post your doubts here!

    If i were in the exam, I would have chosen D because it is the only answer with number 4 in it. High humidity means that transpiration is low thus transpiration pull force is not working properly so the plant uses the Root pressure instead.
  2. S

    A level Biology: Post your doubts here!

    Yes, it is. But why?
  3. S

    A level Biology: Post your doubts here!

    Please I need help with this question: http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Biology%20(9700)/9700_s12_qp_11.pdf Could someone explain question 13?
  4. S

    A level Biology: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Biology%20(9700)/9700_s12_qp_12.pdf Question 2, why is the answer B ??
  5. S

    A level Biology: Post your doubts here!

    june 2007 Question 3 please ! http://papers.xtremepapers.com/CIE/...and AS Level/Biology (9700)/9700_s07_qp_1.pdf
  6. S

    AS Biology P1 MCQs Preparation Thread

    june 2007 Question 3 please ! http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Biology%20(9700)/9700_s07_qp_1.pdf
  7. S

    AS Biology P1 MCQs Preparation Thread

    I had the same argument with my teacher :D
  8. S

    AS Biology P1 MCQs Preparation Thread

    I have some questions guys ! Q) 21, 22, 37 . Please? http://papers.xtremepapers.com/CIE/...nd AS Level/Biology (9700)/9700_s12_qp_12.pdf
  9. S

    AS Biology P1 MCQs Preparation Thread

    You are seeing the edges of the cytoplasm, not the cell membrane.
  10. S

    AS Biology P1 MCQs Preparation Thread

    I have some questions guys ! Q) 21, 22, 37 . Please? http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Biology%20(9700)/9700_s12_qp_12.pdf
  11. S

    AS Biology P1 MCQs Preparation Thread

    I I think it's amylase since it's an enzyme ( pure protein) and the DNA controls protein synthesis. From where did you get that question?
  12. S

    AS Biology P1 MCQs Preparation Thread

    Resolution means the ability to distinguish between two different points. With a resolution less than 7 nm, you won't be able to differentiate the membrane from its surroundings, you won't see it.
  13. S

    AS Biology P1 MCQs Preparation Thread

    40 ) All you have to do is to find the GGP of the tertiary consumer ( fourth trophic level) which is not shown here. First calculate the GGP for 2nd TL 23000- 8000 = 15000. Then calculate GGP for 3rd TL 15000 - 10500 = 4500. Then calculate GPP for 4rth TL 4500 - 4200 = 300. Now calculate the...
  14. S

    AS Biology P1 MCQs Preparation Thread

    False, It's not about the distance between the two membranes. With a resolution of 300 nm, you won't be able to differentiate the membarem ( 7nm) from its surrounding medium.
  15. S

    AS Biology P1 MCQs Preparation Thread

    HIV and the drug is called zidovudine.
See more
Top