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  1. Hisham Khan

    A level Biology: Post your doubts here!

    No because cell surface membrane allow INTERcellular not INTRAcelluar transport
  2. Hisham Khan

    A level Biology: Post your doubts here!

    Membranes within cells don't form hydrogen bonds :)
  3. Hisham Khan

    A level Biology: Post your doubts here!

    *Receptors* *Cough*Cough*
  4. Hisham Khan

    A level Biology: Post your doubts here!

    :)
  5. Hisham Khan

    A level Biology: Post your doubts here!

    yes
  6. Hisham Khan

    A level Biology: Post your doubts here!

    14:A 13:C I guess 17:B?
  7. Hisham Khan

    A level Biology: Post your doubts here!

    :P
  8. Hisham Khan

    A level Biology: Post your doubts here!

    I think it binds to amine (NH2) group of haemoglobin
  9. Hisham Khan

    A level Biology: Post your doubts here!

    You saw the examiner report right ......
  10. Hisham Khan

    A level Biology: Post your doubts here!

    I was joing haha lmfao.I don't think you get the joke in it so I will stop then.
  11. Hisham Khan

    A level Biology: Post your doubts here!

    Stop bullying me or ill 360 degree no scope u guys :/
  12. Hisham Khan

    A level Biology: Post your doubts here!

    I WAS NEVER angry THOOOO xD :P
  13. Hisham Khan

    A level Biology: Post your doubts here!

    I'm pissed cause I was doing chemistry ...
  14. Hisham Khan

    A level Biology: Post your doubts here!

    IF YOU PLS LOOK VERYYYY CAREFULLY YOULL SEE THAT INDEED GRAPH STARTS FOM 0, I AGREE BUT I MEANT TO SAY IT CAN EVEN START FROM MAXIMUM WHEN ENZYME IS FULLY SATURATED?????. IF YOU LOOK AT YOUR GRAPH A YOU CAN SEE THE CONC NEVER REACHES 0,SO EVEN THOUGH IT STARTS FROM 0 IT IS WRONG CAUSE IT DOES...
  15. Hisham Khan

    A level Biology: Post your doubts here!

    THEY SAID A LITTLE IN EXCESS TO CONFUSE YOU BRO! IT DOESENT MATTER LOL BECAUSE CONDITIONS ARE CONSTANT. ANSWER MY QUESTION FIRST.HOW CAN A ENZYME NOT CONVERT EXCESS SUBSTRATE INTO PRODUCT OVER TIME IF NOTHING HAPPENS TO DISRUPT IT FUNCTION. YOU ARE TELLING ME A ENZYME CANT CAHNGE EXCESS...
  16. Hisham Khan

    A level Biology: Post your doubts here!

    Concentration doesen't get constant over time,it reaches 0 (Oval shaped 0) BECAUSE NO COMPLEX IS LEFT FOR ENZYME TO CHANGE INTO PRODUCT OVER TIME!
  17. Hisham Khan

    A level Biology: Post your doubts here!

    Bring it on :P
  18. Hisham Khan

    A level Biology: Post your doubts here!

    It does happen and anyways you answered your own question. IF THE CONDITIONS ARE CONSTANT AND NO CHANGES OCCUR TO ENZYME,HOW DO YOU EXPECT ENZYME SUBSTRATE COMPLEX TO NOT CHANGE INTO PRODUCT FULLY. Again you answered your own question.
  19. Hisham Khan

    A level Biology: Post your doubts here!

    It isin't necessary to start a graph from origin right?.They were studying how enzyme substrate complex changes over time,so it would make sense for the graph to start when all the enzyme is saturated with substrate molecules and enzyme substarte conc is max and see the changes happen to it...
  20. Hisham Khan

    A level Biology: Post your doubts here!

    Everything is constant and ok right,so Answer is D then what's the problem?
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