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  1. S

    any1 preparing for bio 2moro online?

    hey cheer up the thresholds in sciences r quite low
  2. S

    any1 preparing for bio 2moro online?

    any doubts?
  3. S

    any1 preparing for bio 2moro online?

    any discussions goin online on bio 32?
    • sedanx
    • Thread
    • Replies: 5
    • Forum: Chat
  4. S

    Biology; Chemistry; Physics: Post your doubts here!

    behaviour: at least know the definition of taxis - when it is positive or negative - n go through the choice chamber experiment of woodlice
  5. S

    Biology; Chemistry; Physics: Post your doubts here!

    hormones like BST is used to increase milk production in cattle - synthetic oestrogen can be used to fatten the chicken or cows for more meat - Auxins can be used for growing roots in plant cuttings - Gibberellins can be used to produce seedless fruits
  6. S

    Biology; Chemistry; Physics: Post your doubts here!

    they are plant hormones which promote cell elongation in the shoot of the plant and inhibit cell elongation in the root. So, the part that has more auxin in the shoot elongates more whereas part that has more auxin in the root elongates less ... thus the bending (up and down respectively)
  7. S

    Biology; Chemistry; Physics: Post your doubts here!

    Adenosine triphosphate - it is a coenzyme which transports chemical energy in the cells fro metabolic reactions. (note: one function of phosphate ions is to make ATP)
  8. S

    Biology; Chemistry; Physics: Post your doubts here!

    first mention: wen the light is dim (low intesity - eg. dawn or dusk) rate of respiration = rate of photosynthesis so CO2 released = CO2 used is called compensation point
  9. S

    Biology; Chemistry; Physics: Post your doubts here!

    platelets gather in the cut region secrete thrombin which converts soluble fibrogen to insoluble fibrin which forms a mesh over the wound which traps RBCs and more platelets which forms a scab over the wound
  10. S

    Biology; Chemistry; Physics: Post your doubts here!

    nitrogen fixing bac convert nitrogen to ammonia and ammonium compounds nitrifying bac convert ammonium compounds to nitrites and then to nitrates which plants absorb decomposers break down proteins from dead animals, plants, etc and change to amino acids and then to ammonia ... ao the cycle...
  11. S

    Biology; Chemistry; Physics: Post your doubts here!

    not to forget the no. of chromosomes in daughter cells - haploid or diploid
  12. S

    Biology; Chemistry; Physics: Post your doubts here!

    u shud kno the definition, whether the daughter cells are genetically identical or not, no. of daughter cells produced by each division of mitosis or meiosis and then the roles of mitosis n meiosis.
  13. S

    Biology; Chemistry; Physics: Post your doubts here!

    dats y just remember the function as: stores vitamins and minerals .... dats enof
  14. S

    Biology; Chemistry; Physics: Post your doubts here!

    Yes liver stores vitamins A, D, K and B12 and also it is rich in Zinc and Iron.
  15. S

    Biology; Chemistry; Physics: Post your doubts here!

    Chromosomes are thread like structures found in the nucleus and it is made up of DNA and proteins. DNA is a nucleic acid which contains the genetic information for development and functioning of living organisms.
  16. S

    Biology; Chemistry; Physics: Post your doubts here!

    generates heat by respiration, produces bile which emulsifies fat, breaks down toxins (alcohol and drugs as well), produce urea, stores vitamins and minerals ...
  17. S

    Biology; Chemistry; Physics: Post your doubts here!

    Very important: the "independent variable" is represented on the "left hand column" of a table and x-axis in a graph.
  18. S

    Biology; Chemistry; Physics: Post your doubts here!

    The proteins in the cell membrane denature at a high temperature, leaving gaps and making the membrane more permeable, so substances diffuse in or out of the cell easier. This is applicable for all the cells.
  19. S

    Biology; Chemistry; Physics: Post your doubts here!

    oxygen debt the extra oxygen that must be used after a period of strenuous exercise to reconvert lactic acid to glucose and decomposed ATP and creatine phosphate to their original states.
  20. S

    Biology; Chemistry; Physics: Post your doubts here!

    circulating phagocytes produce surface glycoprotein receptors that increase their ability to adhere to the inner surface of capillary walls, enabling them to squeeze out of the capillary and be attracted to the site of infection.
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