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Search results

  1. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    guys...! by mistake i wrote "nitrifying bacteria'" in the nodules question.... but i wrote the complete correct detail of what the nitrogen fixing bacteria does..... i did not write "nitrogen fixing" but i wrote what do the bacteria do.......will they cross it all out or will they give me marks...
  2. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    when flower is closed then self-pollination otherwise wind pollination....
  3. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    the flower was similar to ischaemum muticum which is a wind pollinated flower when open...... it is not attractive so no insect pollination..... but in rare cases it may occur....
  4. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    the answer will be A. P1V1=P2V2 (its a law) so the product of each pressure and volume should be same each time 120x36=4320 100x48=4800 80x60=4800 60x80=4800 the odd set is of A so it is "not" correct....
  5. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    it was a tricky one. i am loosing alot of marks in p2 lets just pray that the grade boundary lowers and we all get A*s... inshallah
  6. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    o yea its respiration wrote photosynthesis by mistake sry....
  7. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    rate of respiration is to be seen(the question said so) this is seen by looking at the CO2 release... if the dot is at very right...the CO2 will apply pressure on it and either throw it out of the tube or just not give a change in reading. the dot needs to be as close as possible to the...
  8. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    the correct option was the one that rejected "the dot of liquid should be at far right of capillary tube" i think it was D.....
  9. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    maybe it will be right...depends on examiner. about physics and chemistry, revise your notes. and solve as many past papers as possible... good luck!
  10. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    same here but google is giving me tension.. it says that plants breathe.:cautious::confused:
  11. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    the question. even values were exact same. they were diluted which also means concentration decreased.....
  12. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    guys what was that question about breathing in humans and not breathing in plants???
  13. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    i saw it carefully it pointed on the guardcell but yeah i have seen examiner write "stomata/guard cells" in marking schemes. lets hope fot the best :) inshallah we all will get A*s. now lets study CHEMISTRY & PHYSICS(y)(y)
  14. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    this is something many people get confused in. i am not saying that you are confused. stomata is the opening made between 2 guard cells they both are totally different! a guard cell was labelled .......
  15. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    really deep thinking :p
  16. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    it was guard cell... lenticel is something totally away from stomata and guard cell stuff. its no way lenticel....
  17. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    M in reproduction question?
  18. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    the question said "the student halved the concentrations of the solutions" half concentrations mean half molecules so reaction produces half the temp rise. volume remains same as the molecules are already halved by using half the concentrations.
  19. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    right.
  20. Abdul Hanan

    Biology; Chemistry; Physics: Post your doubts here!

    i don't know what are gonads but the best to represent the letters were alleles... there are chances, it may also be gametes....
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