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  1. Gummy Beat

    Biology paper 11 gt

    For the process least affected i wrote down active transport. But now that i think about it active transport uses protein channels that can move in the cell membrane(fluid mosaic remember). Thus (i think) if the fluidity decreases, the protein channels movement decrease and active transport...
  2. Gummy Beat

    P1 andp3 AS Biology

    Competitive inhibitors effect decreases by increasing substrate concentration. Thus the rate of reaction increases
  3. Gummy Beat

    P1 andp3 AS Biology

    Is it 15%? If it is, this is what i did: [180-(95+58)]/180. Because the energy converted into biomass is the energy left in the insect after all the loses occured
  4. Gummy Beat

    Biology P5 Doubts, Guess Papers, Important Concepts and Leaks.

    oh i get it now. But how do you draw the error bars on a graph (bar charts and histograms) edit: And how do you know whether to use t test or chi squared test for an expirement thanks in advance
  5. Gummy Beat

    P1 andp3 AS Biology

    glad to help. Good luck
  6. Gummy Beat

    P1 andp3 AS Biology

    Is it c? if it is i only measured the width of the cell membrane (from top pospholipid head to bot phospholipid head) and got 2 cm=20000000nm. You should know that cell membrane width is around 7-8nm and they even mention it. so mag=img/actual therefore mag= 20000000/8 = 2.5 x10 6. Hope i helped
  7. Gummy Beat

    Biology P5 Doubts, Guess Papers, Important Concepts and Leaks.

    I still don't fully understand the t test and what to do with error bars (what is overlap)
  8. Gummy Beat

    AS biology paper 21 discussion!

    For the ALL cancer question in children. I wrote about second hand smoke, inflammtion of lungs (by bacteria growing in excess mucus etc), causes b cellls to leave blood to enter lungs, then i talked about how tar causes cancer with the whole protooncogenes to oncogenes and switching off tumor...
  9. Gummy Beat

    GT for Biology P22

    Man i feel relieved i didn't have your variable because i struggled to finish p21 on time evven though it was 11 pages and wasnt hard lol. Paper 4 is making me super nervous though cuz my main problem is time :(
  10. Gummy Beat

    Biology P21 GT

    ya i wasnt sure if that was a plasmid either so i just chose the free dna hopefully we both got it right : )
  11. Gummy Beat

    Biology P21 GT

    the w/z question was repeated i think or at least very similar to a past paper question. I wrote cell division by mitosis for w and semi cons dna replication for z but i think you can just right cell division and dna replication
  12. Gummy Beat

    Biology P21 GT

    For the ALL cancer question. I wrote about second hand smoke, inflammtion of lungs (by bacteria growing in excess mucus etc), causes b cellls to leave blood to enter lungs, then i talked about how tar causes cancer with the whole protooncogenes to oncogenes and switching off tumor supressor...
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