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  1. HubbaBubba

    Complete AS Biology Notes (P1 and P2)

    Hmm it seems I forgot one line. It should say: "When water reaches the stele, if the apoplast pathway is chosen, it automatically reverts to the symplast because the endodermis has a casparian strip which acts as a barrier. :X3:
  2. HubbaBubba

    Complete AS Biology Notes (P1 and P2)

    The notes are for both p2 and p1, since it's all from the same syllabus. I'll try and see if i can type them after the bio exam tomorrow
  3. HubbaBubba

    AS LEVEL BIOLOGY... discuss here AS students only :)

    1. Large lumen - Allows a large volume of water to be transported at once 2. The walls are coated with lignin to make it water proof and also prevent the structure from collapsing 3. No cell contents so lumen is able to transport large volume of water with little resistance 4. End walls are...
  4. HubbaBubba

    Complete AS Biology Notes (P1 and P2)

    I don't take physics sorry :/ Chemistry, at the moment all my notes are on paper, and since i have no scanner, it means I have to type them onto the computer which would take a while. I'm still unsure if I'll be able to upload them..
  5. HubbaBubba

    Complete AS Biology Notes (P1 and P2)

    Okay hold on, I'll research it and update this post in a bit.. I might be wrong, but that's what it's written in my biology book so I'm just quoting it xd EDIT: The xylem transports water and soluble mineral nutrients from the roots throughout the plant. It is also used to replace water lost...
  6. HubbaBubba

    AS LEVEL BIOLOGY... discuss here AS students only :)

    Inshallah! I studied very hard this year. I don't want to do the same mistakes I did last year :/
  7. HubbaBubba

    AS LEVEL BIOLOGY... discuss here AS students only :)

    Even if it is mentioned, it's not required for us to know that. CIE AS Biology Syllabus says that we only need to know structure of haemoglobin for globular proteins, and fibrogen for fibrous protein. I guess catalase might have a haem group but I wouldn't know, as I haven't studied it :/
  8. HubbaBubba

    AS LEVEL BIOLOGY... discuss here AS students only :)

    It is an advantage, because water molecules are adhesive and cohesive. By decreasing lumen of the xylem the molecules are more able to stick to walls of xylem. When there's a transpiration pull, water molecules pull each other up by mass flow making a continuous flow
  9. HubbaBubba

    AS LEVEL BIOLOGY... discuss here AS students only :)

    I hope they bring a lot of gas exchange/smoking parts and infectious diseases. They are so easy, you get free marks. I really hope they don't bring Bohr effect or haemoglobin. I suck so much at it. It's the thing that brought my grade down in May/June 2012 session haha
  10. HubbaBubba

    AS LEVEL BIOLOGY... discuss here AS students only :)

    No, only haemoglobin contains haem group as far as AS biology is concerned
  11. HubbaBubba

    Complete AS Biology Notes (P1 and P2)

    Oh you're right! Sorry ^_^ I got image off google, because I don't have a scanner to input mine into the notes. I'll change it now :)
  12. HubbaBubba

    Complete AS Biology Notes (P1 and P2)

    I'll input that into the notes :cool::LOL:
  13. HubbaBubba

    Complete AS Biology Notes (P1 and P2)

    Those are part of the A2 syllabus :LOL: I guess 3' and 5' are the same as antisense, because from what I've learnt, it is always read in the 3' direction..:censored: Well, honestly I just picked up things here and there from the book according to the CIE syllabus. They didn't really say we...
  14. HubbaBubba

    Complete AS Biology Notes (P1 and P2)

    Bump :eek:
  15. HubbaBubba

    AS LEVEL BIOLOGY... discuss here AS students only :)

    Multicellular plants and animals have a larger volume compared to their surface area, so simple diffusion would not be enough to transport nutrients, gases around the body, because since distance is too large, the process is too slow. That's why animals have blood circulatory systems while...
  16. HubbaBubba

    AS LEVEL BIOLOGY... discuss here AS students only :)

    What do you guys think will come up in the exam this session? :rolleyes:
  17. HubbaBubba

    AS LEVEL BIOLOGY... discuss here AS students only :)

    What do you mean what's in the syllabus? Anything in the syllabus is in the syllabus
  18. HubbaBubba

    AS LEVEL BIOLOGY... discuss here AS students only :)

    Can somebody explain the bohr effect in a simple way? :)
  19. HubbaBubba

    Hahaha I saw your post on bio thread, and I was like: wouldn't it be funny if it was actually...

    Hahaha I saw your post on bio thread, and I was like: wouldn't it be funny if it was actually nouran? Then I see the birthdate on your profile, and think: wow it's nouran hahaha
  20. HubbaBubba

    Duh it's Shahd

    Duh it's Shahd
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