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  1. S

    A level Biology: Post your doubts here!

    But the maximum rate of reaction would occur without the inhibitors and that has a constant value :S
  2. S

    GT for Biology P22

    Pretty sure it said feature and not organelles. What'd u write in the HIV question?
  3. S

    A level Biology: Post your doubts here!

    But if the substrate concentration doesn't increase then neither does the maximum RATE of reaction right? I'm sorry it's a little confusing, cause noncompetetive inhibitors don't reduce the MAXIMUM rate of reaction either
  4. S

    A level Biology: Post your doubts here!

    How do competitive inhibitors not reduce the maximum rate of reaction?
  5. S

    A level Biology: Post your doubts here!

    It doesn't mean that they can dissolve...it means that they're allied to move freely through the liquid
  6. S

    GT for Biology P22

    If instead of chloroplast we labelled the grana, will it be marked correct?
  7. S

    A level Biology: Post your doubts here!

    Is t it 3.5 x .005= .0175 mm = 17.5 um. Are you sure it's not C?
  8. S

    expected grade boundries for As math p12

    Good for you
  9. S

    expected grade boundries for As math p12

    There was this equation 4x2-4x + something and it was equal to p. we had to find the valueof p for which there were two equal and distinct roots
  10. S

    expected grade boundries for As math p12

    Wasnt q8 (-2,14 1/3)
  11. S

    expected grade boundries for As math p12

    *integrating
  12. S

    expected grade boundries for As math p12

    I tried to make it positive but I forget all about the -x...although I didn't while I reheating for some reason.. But it is a really really minor mistake :/ the second p was what you remember as k
  13. S

    A level Biology: Post your doubts here!

    3H is an isotope of hydrogen which has 2 neutrons...the same no as 4He
  14. S

    expected grade boundries for As math p12

    There were 2 p's in the exam..
  15. S

    expected grade boundries for As math p12

    Will they give me 1/2 in the equation of the tangent part? Cause I used the right method of plugging in the value
  16. S

    expected grade boundries for As math p12

    The tangent one
  17. S

    expected grade boundries for As math p12

    I know and I got my mistake. I forgot multiply by -1 when differentiating...so I got the equation of the tangent wrong too (i got -.5 + x wheh it was +.5 + x) and so i got the area wrong too. Is there ecf in p1?
  18. S

    expected grade boundries for As math p12

    I don't remember... But how was the tangent not negative? The equation was 8-(4-x)^.5 and if you differentiate that and plug in x=3 you get -.5 :S
  19. S

    expected grade boundries for As math p12

    Oh i did write -4 as the final answer but in the working i wrote b2-4ac > 0 and didn't bother changing that :/ whst was equation of the tangent? My gradiebt was coming out to be negative
  20. S

    expected grade boundries for As math p12

    In which p or k was equal to that equation?
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