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  1. S

    MJ Results with percentages?!

    I've been checking out a few threads on xtremepapers related to exam results and there was this one particular thread where people were posting their results. I noticed some people wrote percentages next to their grades. Last time I checked, we get grades not percentages! Am I missing something...
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    [Thread] I Attitude Toward Results

    “Nothing can change the Divine decree except Dua.” Will definitely keep that in mind. :)
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    Word linkage......

    Seriously? :p
  4. S

    Biology Paper:1 Help plz...how to revise?

    Thanks you, yes that helped. I was just confused because I've never heard of a 'quaternary' enzyme but I guess there is such a thing. =)
  5. S

    AS Biology P1 MCQs Preparation Thread

    no problemm..what's a world without laughter? :) Goodnight and goodluck people.
  6. S

    AS Biology P1 MCQs Preparation Thread

    okay look imagine Tom and Jerry. (I'm assuming u know who they are) Tom is the big scavenger and the little hole in the wall (mesh) is where Jerry hides. Now Tom can't squeeze his giant head into that teeny weeny little hole now can he? So who is it that can catch Jerry? any organisms that are...
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    AS Biology P1 MCQs Preparation Thread

    merciii good luck to u !
  8. S

    AS Biology P1 MCQs Preparation Thread

    Solute Potential is obviously more negative as it contains solutes. Water potential is WATER potential. Lol...which means less/no solutes...which means less negativeor closer to zero!
  9. S

    AS Biology P1 MCQs Preparation Thread

    you cans split diploid into haploid, yes? yes. The question is...can you splid haploid any further? Absolutely not! The only type of division undergone by a haploid organism is mitosis/ asexual reproduction.
  10. S

    AS Biology P1 MCQs Preparation Thread

    first of all thanks. second, ur basically saying that if cohesion-tension forces increase as a result of increased transpiration during the day..girth DEcreases>\?
  11. S

    AS Biology P1 MCQs Preparation Thread

    for question 40, cell surface area is in the dictionary of the examiner another word for CELL MEMBRANE. cell membrane has hormone receptors. again, another word for cell volume is CYTOPLASM. in the cytoplasm all metabolic reactions take place, for example cellular respiration which produces CO2. (:
  12. S

    AS Biology P1 MCQs Preparation Thread

    do we need photosynthesis for growth? yes we do because it produces glucose......looking at the other items in the table, is photosynthesis one of other life processes? yup. and finally...what do plants use to respire? oxygen...and what does oxygen do? break down glucose to release CO2...and...
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    AS Biology P1 MCQs Preparation Thread

    to say i fully comprehend this question would be an overstatement but what i can tell u is that u pretty much get it by elimination. the other choices sound absurs. antibodies are SPECIFIC to one antigen ! so an antibody complementary to antigen X will never stimulate an immune response to Y...
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    AS Biology P1 MCQs Preparation Thread

    it binds to the allosteric site ! the active site is too busy spending quality time with its substrate :p ric s
  15. S

    AS Biology P1 MCQs Preparation Thread

    If it's not too late does anybody understand the relationship between the girth (circumference) of a tree trunk and the cohesion-tension theory? It seems to be a recent favorite amongst the examiners. Thanks
  16. S

    AS Biology P1 MCQs Preparation Thread

    i replied but forgot to quote u perhaps my explanation helps?
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    AS Biology P1 MCQs Preparation Thread

    During excercise tidal volume increases and this will decrease Inspiratory Reserve Volume (i.e. the volume of air which u could inhale but dont) - in this case, volume X. Same goes for volume Y. Thing of Reserve Volumes as a Bank of air. When u excercise u take loans of air from ur reserve and...
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    AS Biology P1 MCQs Preparation Thread

    Can someone PLEASE answer me? Why are the 4 levels of protein structure involved in maintaing the specificity of an enzyme when an enzyme is limited to a tertiary structure?? Much appreciated.
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    Biology Paper:1 Help plz...how to revise?

    YO people of the earth! I have a very very mind-boggling question that will haunt me in my sleep if left unanswered and will haunt you for the rest of your life if you don't answer it (just kidding)....why oh why are all 4 levels of protein structure involved in maintaing the specificity of an...
  20. S

    AS Biology P1 MCQs Preparation Thread

    A little off-topic but does anyone know where to find the grade thresholds of papers before 2006? Back then they weren't printed as seperate documents so I don't know where to find them. I need those to evaluate myself. Thanks (:
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