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  1. H

    Chemistry / biology /physics applications

    ASPECTS OF HUMAN REPRODUCTION http://www.s-cool.co.uk/a-level/biology/reproduction/revise-it/sexual-reproduction-in-humans-the-first-stages http://highered.mcgraw-hill.com/sites/0072495855/student_view0/chapter28/animation__maturation_of_the_follicle_and_oocyte.html
  2. H

    Chemistry / biology /physics applications

    full wave bridge rectifier
  3. H

    A2 Biology | Post your doubts here

    describe how structure of mitochondria is adapted for oxidative phosphorylation? can any1 explain last point (highlighted one)
  4. H

    Chemistry / biology /physics applications

    HOW to synthesize protiens e.g INSULIN, FACTOR VII http://www.s-cool.co.uk/a-level/biology/genetic-engineering/revise-it/obtaining-the-gene
  5. H

    A level Biology: Post your doubts here!

    hmm.,..that seems to be correct
  6. H

    A level Biology: Post your doubts here!

    bt brother how can there be two nuclei at metaphase 2 ......cytokinesis at the end of meiosis 1 would have separated those nuclei
  7. H

    A level Biology: Post your doubts here!

    from which angle does this stage looks like METAPHASE 2? markscheme has given alternative as telophase 1 bt only in brackets.....WTH is this...
  8. H

    A level Biology: Post your doubts here!

    WHERE during protien synthesis and replication is energy needed?
  9. H

    A level Biology: Post your doubts here!

    MARKSCHEME + ER busted!!! Q.Describe how carbon dioxide is fixed in the stroma? "The majority of candidates scored full marks, reference being made to carbon dioxide reacting with RuBP to form PGA using Rubisco. Credit was also given for the role of ATP and reduced NADP in the formation of...
  10. H

    A level Biology: Post your doubts here!

    q. describe arrangement of palisade mesophyll cells? am i ryt abt the highlighted ms point?
  11. H

    Chemistry / biology /physics applications

    USE OF MRI TO SCAN BODY:
  12. H

    Chemistry / biology /physics applications

    USE OF MICRO-ORGANSIMS IN MINING
  13. H

    Chemistry / biology /physics applications

    yea brother.....u need to wach this video to understand the circuit analysis for that question BASIC feature of ideal operational amplifier
  14. H

    Chemistry / biology /physics applications

    any one??
  15. H

    Chemistry / biology /physics applications

    solve this problem
  16. H

    Chemistry / biology /physics applications

    What is a CT scan? A computerized axial tomography scan is an x-ray procedure that combines many x-ray images with the aid of a computer to generate cross-sectional views and, if needed, three-dimensional images of the internal organs and structures of the body. Computerized axial tomography...
  17. H

    Chemistry / biology /physics applications

    Cystic fibrosis is an autosomal recessive disease in which thick mucus is produced in the lungs and airways. The gene responsible for this disease codes for a protein composed of 1,480 amino acids. In most patients with cystic fibrosis, the protein has 1,479 amino acids: A phenylalanine is...
  18. H

    Chemistry / biology /physics applications

    this thread is solely for application topics.I could not see any help for application in other threads and since application topics are TOUGH with lot of intensive learning material it is important THAT application topics be considered ESPECIALLY. U can ask related past paper questions also or...
  19. H

    Physics: Post your doubts here!

    ohh kkk i got it....thanks
  20. H

    Physics: Post your doubts here!

    anyone?
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