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  1. S

    Chemistry 9701 7th may ?

    But there was just one line...they asked us to calculate the relative abundance of 81Br and 79Br...they even have the molar mass with the symbol
  2. S

    Chemistry 9701 7th may ?

    Where was 78.92 and 80.92 given?
  3. S

    Chemistry 9701 7th may ?

    I could be wrong though...but it doesn't make sense why we would have used .05 moles of he compound
  4. S

    Chemistry 9701 7th may ?

    How was x 2? It was 30! Why did everyone use .05 moles of the compound? We had to divide it by 5 necause we only used 1 relative mole of the compound instead of the 5 that was given in the equation. So 0.05/5= .01....6.3/0.01= 630...630-90/18=30
  5. S

    A level Biology: Post your doubts here!

    Lol go over the questions again. A was that they're extensively folded to allow expansion....C was that they're folded to increase the SA. The answer was A....and in the second question, it said that histamine is released without antibody-antigen binding. See deep down we all know that these...
  6. S

    Maths paper 12 ???

    Didn't it ask for the range of h(x) and not h-1(x)...so wont it be -2?
  7. S

    A level Biology: Post your doubts here!

    But you just said that the bronchus is involved in gaseous exchange...that's why they're inner membrane is folded to allow expansion :S also don't the antibodies attach to the mast cell AFTER encountering a pathogen (the antigen would've have bonded to them to make that happen)
  8. S

    A level Biology: Post your doubts here!

    Ohh. Wait but then when do the antibodies attach to the mast cell? In secondary responses its when the pathogen attaches to the antibodies on the mast cell that the mast cell releases histamine right? Could you elucidate the events that take place in the primary allergic response please Also how...
  9. S

    GT for Biology P22

    Yeah I don't blame you
  10. S

    GT for Biology P22

    What was the exact question? Cause I know a lot of people who wrote denitrification
  11. S

    GT for Biology P22

    Haha yeah well you should lament over your degenerative character..You're sucha sorry soul. Btw it was denitrification...ask anyone with a brain since you are clearly bereft of one..
  12. S

    GT for Biology P22

    Plural of grana Not OF thylakoids UNLESS you give IF you give these justifications, he'll laugh These basic grammar mistakes show that you're not somebody whose perceptions and childish ideas can be taken as true statements
  13. S

    GT for Biology P22

    Grana or granum whatever is largely..actually entirely consisted of thylakoids...so if the light dependent stage ensues there it naturally and unquestionably takes place in the grana because they are more or less consisted of the same matter and hence have he same function
  14. S

    GT for Biology P22

    Do you hear yourself? It was the nitrogen cycle..the first process was denitrification because it was returning nitrogen back into the atmosphere. These two processes were to be such that they would delineate the return of nitrogenous compounds from our bodies and other 'locked' compounds into...
  15. S

    A level Biology: Post your doubts here!

    C cause chloroplasts are membrane bound organelles
  16. S

    GT for Biology P22

    No shit...I dunno why I'm wasting my time talking to idiots like you :/ dude that means grana the plural form of thylakoids which means they have the same function...seriously are you that stupid?!
  17. S

    GT for Biology P22

    The answers were ammonificatuon, deamination or decomposition. It asked how the NUTRIENTS are made available in the soil cause it illustrated the nitrogen cycle
  18. S

    expected grade boundries for As math p12

    I just realized that I forgot to put the negative sign. How many marks was q2 for?
  19. S

    GT for Biology P22

    And btw an organelle is a part that has a specific function...and the grana control the light dependent stage of Photosynthesis and are hence an organelle of the chloroplast itself ..
  20. S

    GT for Biology P22

    Are you daft? In every part paper question, it asked us to level a feature...why would they choose to word the question differently this time?
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