Hey there! Sign in to join this conversationNew here? Join for free
x Turn on thread page Beta
    Offline

    1
    ReputationRep:
    (Original post by geor_thor)
    For the pollen peat bog Q I put because lack of oxygen so decomposers cannot respire through aerobic respiration so no decomposition of pollen. Acidic conditions mean bacteria killed so no decomposition. Not sure if I'm on the right lines??
    I said that too but I think you had to mention the fact that the outer wall was chemically stable, otherwise they wouldn't have mentioned it. This means it isn't affected by the acidic surroundings
    Offline

    2
    ReputationRep:
    (Original post by Fuego1)
    For the question about how structureP/Q is used in making antibodies, I mentioned about the ReR and how it packages proteins/antibodies into vesicles, fuses with Golgi apartus, modification in Golgi and release by exocytosis. Would that get me 3 marks cuz I didn't mention extra cellular enzymes
    No I think they asked how structure R produced antibodies which is the rough endoplasmic reticulum so I think you have to talk about translation using ribosomes and some 3D modification.
    Offline

    17
    ReputationRep:
    (Original post by Feraligatr)
    (Original post by JustPolly101)
    I want to scream -- that was such a frustrating paper!! COULD NOT answer the stupid plant fertilisation Q. And comPLETELY forgot about bloody introns and exon (wrote some s*** about being modified through RER and Golgi -- absolute repetitive *******s) !#!%^@&¥€]{!!?*{????????!!!!****
    Worst paper of my ****ing life. Was so prepared for it too. I never cry for exams but rah that paper was so dirty
    Offline

    12
    ReputationRep:
    (Original post by Robynjayne)
    I said that too but I think you had to mention the fact that the outer wall was chemically stable, otherwise they wouldn't have mentioned it. This means it isn't affected by the acidic surroundings
    Wasn't it the inner cell wall? That was made of a substance we haven't been taught but it mentioned in the question as being chemically stable. The outer cell wall was cellulose.
    Offline

    1
    ReputationRep:
    (Original post by farrl005)
    You could be right tbh I didn't rly know what I was doing hahah
    Neither did I haha I was just like yeah I'll do this, no I'll do this, but thisss 😄
    Offline

    1
    ReputationRep:
    (Original post by .JC.)
    Wasn't it the inner cell wall? That was made of a substance we haven't been taught but it mentioned in the question as being chemically stable. The outer cell wall was cellulose.
    Hmm maybe you're right. I was almost 100% sure the inner wall was cellulose ..
    Offline

    1
    ReputationRep:
    (Original post by Brybrycg)
    Did anyone else understand the relevance of that fertilisation question? Isn't that all just AS? 😕
    What was your answer for that one?
    Offline

    12
    ReputationRep:
    (Original post by geor_thor)
    For the pollen peat bog Q I put because lack of oxygen so decomposers cannot respire through aerobic respiration so no decomposition of pollen. Acidic conditions mean bacteria killed so no decomposition. Not sure if I'm on the right lines??
    also low ph denatures enzymes released by decomposers
    Offline

    12
    ReputationRep:
    (Original post by Robynjayne)
    Hmm maybe you're right. I was almost 100% sure the inner wall was cellulose ..
    Ahh maybe you're right if you're that sure. I didn't look too much into it just saw that the question mentioned part of it being chemical stable. Either way, I'd imagine they'll award a mark for saying that said substance made it chemically stable, regardless of it you put inner or outer. *fingers crossed*
    Offline

    12
    ReputationRep:
    (Original post by faheem97786)
    What was your answer for that one?
    one male nuclei fuses with two polar nuclei to form a triploid endosperm ( food store ) while one male nuclei fuses with the egg cell to form a zygote
    Offline

    5
    ReputationRep:
    OMG the paper was horrible, however if we'd glanced at the Jan 2014 IAL paper we would have all gotten A*. what surprises me is that everyone found it difficult (including myself) despite the fact the paper was identical to the IAL one? SO angry at myself. The answers were literally available to me. **** THIS.
    Offline

    1
    ReputationRep:
    What did people put at the reasons for rising sea level?
    Offline

    1
    ReputationRep:
    That was a dead paper
    Offline

    12
    ReputationRep:
    (Original post by smdmofo)
    What did people put at the reasons for rising sea level?
    Melting of ice caps and changes in rainfall patterns. I explained the first part in detail to be safe (so it was 2 marks worth).
    Offline

    1
    ReputationRep:
    (Original post by perez_perez)
    I put RER as well and I chose this instead of sER because rough ER is closest to the nucleus isn't it? therefore it can't be smooth ER as the arrow pointed to the organelle that was right outside the nucleus, but I did contemplate whether it was RER or cytoplasm... hope I was right
    Put ReR as that seemed to be the only one that made sense to me, pretty sure that was right. That picture was old AF
    Offline

    17
    ReputationRep:
    Ngl I thought I'd be okay before I went in, maybe get a B, possibly an A but I think I got a U. **** YOU EDEXCEL FOR MESSING UP PEOPLES LIVES LIKE THIS. Might as well renamed it "really hard unit 2 paper with a few A2 questions in"
    Offline

    1
    ReputationRep:
    The paper was laughable, the unit 4 and 5 papers have said on past examiners reports that 10-20% of the paper will be AS work, this must have been at least 50%! Also I don't see why they would put plant fertilisation in unit 4 as it does not link to any topics (I understand for cellulose, DNA and cell structures being there as they link to the topics in unit 4). It's almost like they are punishing those who did well at AS and didn't have to retake!
    Offline

    12
    ReputationRep:
    (Original post by Daniel9998)
    one male nuclei fuses with two polar nuclei to form a triploid endosperm ( food store ) while one male nuclei fuses with the egg cell to form a zygote
    ngl I never even bother to learn that properly last year. Hopefully just got a mark or 2 for mentioning zygote and food source :colonhash:
    Offline

    1
    ReputationRep:
    I was thinking that they may have been asking about the role of genetic diversity in the question about the role of a male plant nucleus, i was saying stuff like why its an advantage to have genes from two different organisms?
    Offline

    1
    ReputationRep:
    (Original post by Robynjayne)
    Hmm maybe you're right. I was almost 100% sure the inner wall was cellulose ..
    Yeahh the inner wall was cellulose and the outer on was that substance beginning with s!
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: October 11, 2016
Poll
Do you like carrot cake?

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.