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    CIE Result!

    OH THANK GOD! I freaked out when I found this out..
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    CIE Result!

    GUYS!! A* is on 95 A is on 85 According to this, an 84 is a B!!! http://www.britishcouncil.org/pakistan- ... otice6.pdf
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    HOW WAS BIOLOGY 42??

    1 mesophyll cells tightly packed/AW ; 2 so O2 cannot reach bundle sheath cells ; 3 light independent stage/Calvin cycle or RuBP, in bundle sheath cells ; 4 ref. malate shunt ; 5 maintains high CO2 concentration (in bundle sheath cells) ; 6 PEP carboxylase, has high optimum temperature/has higher...
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    HOW WAS BIOLOGY 42??

    i wrote this: Hot dry climate- high stress condition for plant, more transpiration, ABA, stomatal closure, less C02 uptake as CO2 enters only through the stomata. What did you write?
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    HOW WAS BIOLOGY 42??

    I don't remember the question clearly.. wasn't that one straight forward? Zona pellucida- A glycoprotein- receptor where the acrosome binds- "block" (wow CIE) ZP3 gene expression- no zona pellucida produced by the granulosa cells- Sperm cannot "find" the secondary oocyte to fuse with- hence no...
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    HOW WAS BIOLOGY 42??

    Estrogen/Progesterone Contraceptive pill 1 (oestrogen / progesterone affect) hypothalamus / anterior pituitary ; 2 inhibit secretion of, FSH / LH / GnRH ; 3 follicles do not develop ; 4 no ovulation ; R ref to eggs 5 ref. negative feedback ; 6 alters cervical mucus to stop sperm ; 7 prevents...
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    HOW WAS BIOLOGY 42??

    yes yes, but we write this stuff first right? =O i wrote this and then wrote that ABA inhibits the H+ pump so causes the stomata to stay flaccid :no:
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    HOW WAS BIOLOGY 42??

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    HOW WAS BIOLOGY 42??

    Advantages of immobilization end product not contaminated; enzyme, more stable/less likely to be denatured; enzyme recovery easier; idea of enzyme being reused; AVP; e.g. cost
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    HOW WAS BIOLOGY 42??

    Immobilizing enzymes 1. enzyme put into (solution of) sodium alginate ; 2. place mixture in syringe ; 3. add drops of mixture to calcium chloride solution ; 4. calcium ions replace sodium ions (to form beads) ; 5. enzymes trapped in beads ; [2 max]...
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    HOW WAS BIOLOGY 42??

    individuals in population have great reproductive potential numbers in population remain roughly constant ; variation in members of population ; environmental factors (cause) many, fail to survive / die / do not reproduce ; those best adapted survive / survival of the fittest ; (reproduce...
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    HOW WAS BIOLOGY 42??

    which is the germinal epithelium ovary wall? how unspecific... idk.. :no:
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    HOW WAS BIOLOGY 42??

    Gibberellin 11 seed absorbs water ; 12 by osmosis ; 13 gibberellin produced by embryo plant ; 14 passes to aleurone layer ; 15 switches on / activation, transcription enzyme genes / AW ; 16 storage proteins broken down to amino acids ; 17 stimulates synthesis / release of amylase ; 18 amylase...
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    HOW WAS BIOLOGY 42??

    ABA stomatal closure essay 1 ref. ABA absence ; 2 H+ transported out of guard cells, actively / using ATP ; 3 low H+ conc / negative charge, inside cell ; 4 K+ channels open / K+ diffuses into cell ; 5 water potential of cell falls ; A decrease in solute potential 6 water moves into cell by...
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    HOW WAS BIOLOGY 42??

    A- Germinal Epithilium B- Theca C- Granulosa D- Secondary Oocyte
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    HOW WAS BIOLOGY 42??

    hahaha @ the cat. I was at PK 649- DHA' Public 'School. No AC!! the TORTURE! :evil: anyway yeah, the paper was LONG! i started freaking out at 10:15 and was at q4 only lol then got serious and finished the paper 3 min before it ended 8)
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    HOW WAS BIOLOGY 42??

    I did Q 11. EASY EASY 15 marks =D very specific essay and was a repeat =D I was done in 8 lines each =D
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    HOW WAS BIOLOGY 42??

    no you wont lose marks :)
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    HOW WAS BIOLOGY 42??

    I think 68-69.
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    HOW WAS BIOLOGY 42??

    Section B was amazing!! I attempted Q2. 15 on 15 for SURE!!!! (inshallah) Section A was good as well. made a couple of silly mistakes so will lose max 10 marks I see an A* !!! :Yahoo!:
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