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  1. X

    Biology MCQ thread..!!

    ever heard of transpiration is the consequence of gaseous exchange in plants? stomata are kept open so that gases can move in and out so due to the open stomata and the factors you should know, transpiration occurs. the answer is not C because water potential is not maintain when...
  2. X

    Biology MCQ thread..!!

    the answer is D rite? do u not read your text book? when one molecule of oxygen binds to the haemoglobin, the haemoglobin is slightly distorted making it easier for the next oxygen molecule to bind. how exactly do the structure change i cannot tell cause it is not in our syllabus, but the...
  3. X

    Biology MCQ thread..!!

    it's just a fact that triglycerides are less saturated with hydrogen compared with phospholipid. go and find the structure and compare and count yourself id you don't believe.
  4. X

    Biology MCQ thread..!!

    cause there it is just NOT possible to find any DNA, rRNA, mRNA which is made up from nucleic acid inside.
  5. X

    Biology MCQ thread..!!

    ans : C ?
  6. X

    Physics MCQs thread.

  7. X

    Physics MCQs thread.

    Q12 the eqn u should have is 60m - 30m = 2mv * it should b a MINUS because both objects r travelling in opposite directions. * 2mv because both objects join together after impact making their total mass 2m and their speed the same v. ans: A
  8. X

    Physics MCQs thread.

    ans : B?
  9. X

    Biology MCQ thread..!!

    just quite being mean and shut up.people will try to help if they know the answer. you CAN'T blame people who view the forum but doesn't know the answer and you CAN't blame people who know the answer but they don't view the forum. it's a choice not a must, if people don't answer you, the most...
  10. X

    Physics MCQs thread.

    B is the ans. ignore the pulley cause no friction force is mentioned. the torque to move the disc is 900x0.2 =180Nm-1 so now, to use the spindle to move the disc which have a torque of 180Nm-1 F x 1.2 = 180 F = 150 N.
  11. X

    Help in BIOLOGY ...please!

    ans : A?
  12. X

    Biology MCQ thread..!!

    so crop rotation. - fertility of the soil depends on the amount of nutrients present. nutrients ie. nitrogeneous compunds - when you plant normal plants ( non-leguminous plants ), they use up the nitrite ions in the soil - however, if you do crop rotation, it means you plant 1 year normal...
  13. X

    Biology MCQ thread..!!

    the fibres in the septum is to transmit impulses to the ventricles so the answer is D
  14. X

    Physics MCQs thread.

    mark scheme for m/j and o/n 01 paper?
  15. X

    Chemistry MCQ thread...

    2 and 3 are wrong. sulphuric acid is not oxidised, it is a oxidising agent, it should be REDUCED bromide ions are OXIDISED to bromine. 1- to 0.
  16. X

    Chemistry MCQ thread...

    Ba is more electropositive than Mg, hence Mg cannot displace Ba.
  17. X

    Chemistry MCQ thread...

    ans : C ? yes?
  18. X

    Chemistry MCQ thread...

    to be more accurate, angle Y is 107' 3 bonded pairs and 1 lone pair, doesn't that remind youj of NH3?
  19. X

    Chemistry MCQ thread...

    BINGO!
  20. X

    Chemistry MCQ thread...

    ans A?
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